D4PG · 2026
Part of Data for Public Good — Creative Futures · An educational resource from TCIA's community tech library
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Open Source · Power · People · Possibility

Who Built the Internet
You Live In?

A D4PG community resource — the history of open source, who it serves, and how your community can reclaim it
Click any card to reveal creator bio, solutions built & what it means for your community
Why this matters — The opportunity context

The internet, the smartphone in your pocket, the maps you navigate by, the tools your children learn with — most of it was built on open source software. Code that anyone can use, study, change, and share. Code that was designed to belong to everyone.

But here's the question TCIA is asking: if the infrastructure is open, why do so few communities hold power over it? Who governs the algorithms shaping your housing application, your child's school software, your neighborhood's surveillance systems? Understanding open source history is not a tech lesson — it's a power lesson. Technological direction is a political choice, not a natural law.

Who governs? Who benefits? Who bears risk? Who gets to build?
1983
🧔
GNU Project · Free Software
Richard Stallman Announces GNU
September 27, 1983
Stallman posts to net.unix-wizards declaring a mission to build a complete free Unix-compatible operating system. The philosophical foundations of software freedom are laid — code as shared human inheritance.
Expand: Bio & Solutions
👤
Creator Bio
Full Name
Richard Matthew Stallman (RMS)
Born
March 16, 1953 — New York City, USA
Education
Harvard University (Physics); MIT (dropped out)
Career
MIT AI Lab programmer (1971–1984); founder of GNU Project & FSF
Philosophy
"Free as in freedom, not free as in beer." Software must be modifiable and shareable as a matter of ethics.
🔧
Solutions Created
  • GNU Compiler Collection (GCC) — the compiler that builds nearly all open source software to this day
  • GNU Emacs — a programmable text editor still in active use 40+ years later
  • GNU Debugger (GDB), GNU Make, Bash shell — core developer toolchain
  • Copyleft licensing concept — using copyright law to guarantee perpetual freedom
  • GNU Public License (GPL) — the legal framework that protects billions of lines of open code
Longevity Impact
GCC still powers Linux kernel builds97%
🌱
Sustainability Impact
Stallman's copyleft model ensures software improvements cannot be enclosed. Every improvement to a GPL tool must remain free — creating a permanently self-sustaining commons. GNU tools now run the infrastructure of global climate research, satellite monitoring, and environmental modelling systems.
What this means for your community
The opportunity
Stallman's insight was that ownership of tools is ownership of power. When your community uses proprietary software — in schools, city halls, clinics — you are renting infrastructure from corporations who can change the terms, raise prices, or shut you out. GPL-licensed tools like LibreOffice and Linux belong to no corporation. Every public institution in Minneapolis and St. Paul could switch to free, community-governed software today — saving millions in licensing fees and reclaiming data sovereignty. TCIA's Data Trust work is built on this same principle: shared infrastructure, governed collectively.
1985
📜
Free Software Foundation · Licensing
FSF Founded & GNU Manifesto
October 4, 1985
Stallman founds the Free Software Foundation and publishes the GNU Manifesto — articulating the four freedoms: use, study, modify, distribute. A moral framework for software becomes institutionalised.
Expand: Bio & Solutions
👤
Creator Bio
Organisation
Free Software Foundation (FSF), Boston MA
Founding
1985 by Richard Stallman with initial volunteers
Mission
Promote, protect, and extend software freedom globally
Model
Non-profit; sustains GNU infrastructure through donations and memberships
🔧
Solutions Created
  • GPL v1 (1989), v2 (1991), v3 (2007) — the world's most widely used free software license
  • GNU Lesser GPL (LGPL) — allowing libraries to be used in proprietary code
  • GNU Affero GPL (AGPL) — extending copyleft to network/cloud services
  • Free Software Definition — canonical standard for what qualifies as free software
  • GNU Savannah — hosting platform for thousands of free software projects
1991
⎇ Linux Kernel Branch
🐧
Linux Kernel · Operating Systems
Linus Torvalds Releases Linux 0.01
September 17, 1991
A 21-year-old Finnish computer science student posts "I'm doing a (free) operating system (just a hobby)" to a Usenet group. The kernel that would come to power 97% of the world's supercomputers, all Android devices, and the vast majority of the internet begins.
Expand: Bio & Solutions
👤
Creator Bio
Full Name
Linus Benedict Torvalds
Born
December 28, 1969 — Helsinki, Finland
Education
University of Helsinki — M.Sc. Computer Science (1996)
Career
Linux kernel maintainer; Senior Fellow at Linux Foundation
Motivation
Frustration with the cost of MINIX, a proprietary Unix clone used in teaching. Wrote Linux on a 33 MHz Intel 386 with 4MB RAM.
🔧
Solutions Created
  • Linux Kernel — powers Android (3B+ devices), 96.4% of top 1M web servers, all 500 of the world's top supercomputers
  • Git (2005) — distributed version control system now used by 90%+ of developers worldwide
  • Subsurface (2011) — dive logging software, open source
  • Linux kernel patch review model — a meritocratic, email-based governance system adopted by thousands of projects
Global Device Penetration
Linux runs on ~92% of internet infrastructure92%
🌱
Sustainability Impact
Linux is the OS of energy transition infrastructure: wind farm SCADA systems, solar inverter controllers, EV charging networks, and smart grid management platforms all run on Linux. The Linux Foundation's LF Energy project now coordinates open source energy software across 50+ utilities worldwide.
What this means for your community
The opportunity
Linux powers 92% of internet infrastructure — and yet most communities have no say in how that infrastructure is governed. The question isn't whether your community uses Linux. It does. Every city website, every school server, every hospital record system likely runs on it. The opportunity is to move from passive user to active stakeholder — advocating for open source procurement policies in city government, demanding that public data systems run on auditable open code, and training local technologists who can maintain and modify these systems. What a student from North Minneapolis builds on Linux today could run a city system tomorrow.
1993
⎇ Open Web Branch
🌐
Open Web · Standards
CERN Releases Web into Public Domain
April 30, 1993
Tim Berners-Lee and CERN release the World Wide Web protocols into the public domain — free for anyone to use, forever. The decision not to patent the web is arguably the largest gift to human knowledge in history.
Expand: Bio & Solutions
👤
Creator Bio
Full Name
Sir Timothy John Berners-Lee
Born
June 8, 1955 — London, England
Education
Oxford University — B.A. Physics, 1976
Career
CERN contractor → founded W3C (1994); Professor at MIT & Oxford; founder of Solid project
Honours
Knighted 2004; Turing Award 2016; TIME 100 Person of the 20th Century
🔧
Solutions Created
  • HTTP — HyperText Transfer Protocol, the universal language of the web
  • HTML — HyperText Markup Language, structural format of every web page
  • URL/URI — Universal resource addressing system
  • W3C (World Wide Web Consortium) — open standards body governing the web
  • Solid — a decentralised web protocol giving users control of their own data (ongoing)
What this means for your community
The opportunity
Berners-Lee gave the web to the world for free — but corporations have been enclosing it ever since. Social media platforms, search engines, and app stores have rebuilt walled gardens on top of open protocols. Your community's digital presence — its stories, its networks, its organizing history — lives on platforms that can delete it, de-monetize it, or weaponize it against you. Berners-Lee's Solid project is building the next web, where you own your own data and move it freely between services. TCIA's data trust model is rooted in this same vision: community-controlled data, not extracted data. Learning to host your own websites, run your own servers, and use open protocols is an act of sovereignty.
1997 – 1998
⎇ Commercial & OSI Branch
📖
Philosophy · Collaboration Theory
Eric Raymond: The Cathedral & the Bazaar
1997
Raymond's essay arguing that distributed open development ("the bazaar") produces better software than closed hierarchies ("the cathedral"). Persuaded Netscape to open-source Navigator — the decision that created Mozilla and Firefox.
Expand: Bio & Solutions
👤
Creator Bio
Full Name
Eric Steven Raymond (ESR)
Born
December 4, 1957 — Boston, USA
Career
Programmer, author, open source advocate; co-founder of Open Source Initiative
Key Works
"The Cathedral and the Bazaar" (1997), "The Art of Unix Programming" (2003)
🔧
Solutions Created
  • fetchmail — widely used email retrieval tool, still in use
  • Open Source Initiative (co-founder, 1998) — the canonical licensing body for open source
  • Open Source Definition — the standard that defines what qualifies as open source
  • Conceptual framework for distributed software development — influenced Agile, DevOps, and modern engineering culture
🏛️
OSI · Licensing
"Open Source" Coined — OSI Founded
February 1998
Christine Peterson coins "open source" at a strategy session in Palo Alto. Bruce Perens and Eric Raymond found the Open Source Initiative. The pragmatic rebranding of free software begins — enabling corporate adoption.
Expand: Bio & Solutions
👤
Key People
Coined by
Christine Peterson — co-founder of Foresight Institute; nanotechnology researcher
Bruce Perens
Debian project leader; authored Open Source Definition; signatory of original Debian Social Contract
Context
Strategy session on Jan 22, 1998 in Palo Alto following Netscape's announcement to open Navigator source
🔧
Solutions Created
  • Open Source Definition (OSD) — 10 criteria defining what qualifies as open source, still used today
  • OSI license approval process — certifies licenses as open source compliant
  • Reframing of "free software" to "open source" — enabling corporate participation and investment
  • Debian Social Contract — a template for community governance adopted by many subsequent projects
2001
⚖️
Creative Commons · Open Culture
Lawrence Lessig Founds Creative Commons
2001
Lessig extends open source philosophy beyond software to all creative works — music, film, writing, science, education. CC licenses power Wikipedia, OpenStreetMap, and the global open access academic movement.
Expand: Bio & Solutions
👤
Creator Bio
Full Name
Lawrence Lessig
Born
June 3, 1961 — Rapid City, South Dakota, USA
Education
University of Pennsylvania (B.A.); Trinity College Cambridge (M.A.); Yale Law School (J.D.)
Career
Professor at Harvard Law School; founding board of Wikipedia; legal theorist of internet governance
Books
"Code and Other Laws of Cyberspace" (1999), "The Future of Ideas" (2001), "Free Culture" (2004)
🔧
Solutions Created
  • Creative Commons license suite (CC0, CC-BY, CC-SA etc.) — 2.5B+ works licensed globally
  • Legal infrastructure for open access scientific publishing
  • Wikipedia's licensing framework (CC-BY-SA) — 60M+ articles freely shared
  • OpenStreetMap license basis — the open geography dataset used in humanitarian aid, disaster response, and urban planning
🌱
Sustainability Impact
CC licenses power the open access science movement — allowing climate research, biodiversity data, and environmental models to be freely shared. The IPCC reports, open biodiversity databases (GBIF), and NASA's Earth Observation data all rely on CC-licensed frameworks to share findings globally.
What this means for your community
The opportunity
Your community's knowledge, art, and stories have value — and you get to choose who profits from them. Creative Commons licenses let artists, educators, and organizers share their work freely while keeping control. Musicians in North Minneapolis can release music that anyone can remix for community events but nobody can sell without permission. Educators can share curriculum freely across districts. The cultural production of Black and Brown communities has been extracted and monetized by corporations for generations — CC licensing is one tool for communities to control their own narrative, protect their intellectual legacy, and build on each other's work rather than starting from scratch. Wikipedia, the free encyclopedia built by volunteers, runs entirely on these licenses.
2005
🌿
Version Control · Collaboration
Linus Torvalds Creates Git
April 7, 2005
After a licensing dispute ends Linux's use of BitKeeper, Torvalds writes a distributed version control system in ten days. Git becomes the universal language of collaborative software development — used by 98% of developers globally.
Expand: Bio & Solutions
👤
Creator Bio
See Linus Torvalds bio above (Linux Kernel, 1991). Git was written in April 2005 — Torvalds considered it done in 2.5 months, with initial Linux kernel hosting complete in June 2005.
🔧
Solutions Created
  • Git — decentralised version control; every copy is a full repository with complete history
  • Branching model — enables parallel development without central authority
  • Infrastructure for GitHub, GitLab, Bitbucket — platforms hosting 500M+ repositories
  • The pull-request workflow — now the global standard for collaborative code review
2008
⎇ Cloud & Platform Branch
🐙
GitHub · Social Coding
Tom Preston-Werner & Chris Wanstrath Found GitHub
February 8, 2008
GitHub launches as "social coding" — wrapping Git in a discoverable web interface with forking, pull requests, and developer profiles. It transforms open source from a mailing-list culture into a networked, visual commons. By 2023: 100M+ developers, 420M+ repositories.
Expand: Bio & Solutions
👤
Founders Bio
Tom Preston-Werner
Born 1979, Iowa. Dropped out of Harvey Mudd College. Created Jekyll (static site generator), Gravatar, Semantic Versioning (semver). Left GitHub 2014.
Chris Wanstrath
Born 1985, Cincinnati. Self-taught programmer. GitHub CEO 2008–2018. Led Microsoft acquisition process.
PJ Hyett
Co-founder; led GitHub's engineering early years.
Scott Chacon
Co-founder; wrote "Pro Git" book (free, CC-licensed); Git evangelist.
🔧
Solutions Created
  • GitHub — the world's largest open source code host (100M+ developers as of 2023)
  • Pull Request workflow — now the universal pattern for code review and contribution
  • GitHub Actions — CI/CD automation integrated into open source workflow
  • GitHub Copilot — AI pair programmer trained on open source code (controversial)
  • GitHub Sponsors — economic sustainability model for open source maintainers
What this means for your community
The opportunity — and the warning
GitHub made open source social and accessible — but Microsoft's $7.5 billion acquisition in 2018 is a case study in enclosure. The world's open source commons is now owned by a corporation. When GitHub goes down, global software development stops. This is exactly the pattern TCIA's framework names: communities build the resource, corporations capture it. The opportunity is twofold: First, the tools GitHub hosts are still free — any young person in your community can learn to code, contribute to real projects, and build a portfolio that opens doors. Second, alternatives like Codeberg and GitLab offer community-governed hosting. Pushing city and school systems toward open, non-Microsoft-controlled platforms is a concrete policy ask your community can make right now.
2013 – 2014
📦
Containerisation · Cloud Infrastructure
Solomon Hykes Creates Docker
March 2013
Docker open-sources container technology — allowing applications and their dependencies to be bundled into portable, reproducible units. Kubernetes follows in 2014. Together they become the universal platform for deploying software on open infrastructure.
Expand: Bio & Solutions
👤
Creator Bio
Full Name
Solomon Hykes
Born
1983 — Franco-American, raised in Paris and New York
Education
École pour l'informatique et les techniques avancées (EPITA), Paris
Career
Founded dotCloud (PaaS startup) → pivoted to Docker Inc. 2013; left Docker 2018; founded Dagger.io (2022)
Kubernetes
Created at Google by Joe Beda, Brendan Burns, Craig McLuckie — open-sourced June 2014; donated to CNCF 2016
🔧
Solutions Created
  • Docker — container runtime and image format; changed how every application is deployed globally
  • Docker Hub — public registry of 8M+ container images
  • OCI (Open Container Initiative) — open standard for container formats and runtimes
  • Kubernetes (Google, 2014) — container orchestration platform now governing the majority of cloud workloads
  • CNCF (Cloud Native Computing Foundation) — governs 170+ open source cloud-native projects
Enterprise Kubernetes Adoption
84% of enterprises run Kubernetes in production84%
🌱
Sustainability Impact
Containers enable fine-grained resource allocation, dramatically reducing idle server capacity. Kubernetes bin-packing algorithms improve server utilisation from ~15% to 60–80%, reducing the physical footprint of the internet. The CNCF's Environmental Sustainability TAG specifically tracks cloud-native tools for carbon-aware workload scheduling.
What this means for your community
The opportunity
Cloud infrastructure sounds distant — but it shapes the cost of every digital service your community uses. When nonprofits, schools, and community organizations pay for cloud services, where does that money go? Almost entirely to Amazon, Microsoft, and Google. Open source infrastructure tools like Kubernetes mean that a technically skilled community organization can run its own cloud — reducing dependency on tech monopolies and keeping resources local. More immediately: these are high-paying jobs. Cloud infrastructure skills are among the most in-demand in the tech industry. TCIA's workforce development work can directly target this pipeline, connecting Twin Cities youth to careers that don't require a four-year degree — just structured learning and open source practice.
2015 – 2016
⎇ Open Source AI Branch
🧠
Machine Learning · AI Frameworks
Google Open-Sources TensorFlow
November 9, 2015
Google releases its internal machine learning framework as open source. PyTorch (Facebook/Meta) follows in 2016. Together they democratise deep learning research — enabling universities, startups, and researchers in every country to build AI without proprietary tools.
Expand: Bio & Solutions
👤
Key People
Jeff Dean
Google Senior Fellow; led Google Brain; co-creator of MapReduce, BigTable, and TensorFlow; MIT Ph.D.
Martín Abadi
Lead TensorFlow researcher; previously at Bell Labs and DEC SRC; professor at UC Santa Cruz
PyTorch (Meta)
Created by Soumith Chintala (NYU) and team at Facebook AI Research (FAIR); released January 2017
Yann LeCun
Meta Chief AI Scientist; Turing Award winner; pioneer of convolutional neural networks; championed PyTorch's open release
🔧
Solutions Created
  • TensorFlow — used to build image recognition, NLP, and medical diagnosis systems in 180+ countries
  • Keras — high-level neural network API (now integrated into TensorFlow)
  • PyTorch — dominant research framework; 80%+ of AI research papers use it
  • TFHub / Hugging Face — model hubs enabling transfer learning without massive compute
  • TensorFlow Lite / ONNX — enabling AI inference on low-power edge devices and smartphones
🌱
Sustainability Impact
Open ML frameworks power climate and environmental science: weather forecasting (GraphCast), wildfire spread prediction, plastic pollution tracking in oceans, and species identification (iNaturalist). DeepMind's AlphaFold — which solved 200M protein structures and runs on PyTorch/JAX — is accelerating drug discovery and materials science for clean energy.
What this means for your community
The opportunity — and the stakes
AI is being built right now, and most of the people building it do not look like your community. The tools — TensorFlow, PyTorch — are free and open. The knowledge to use them is accessible. What's missing is the on-ramp: mentorship, context, and a community that says this is for you too. But open tools can also be used against communities. The same frameworks that power medical breakthroughs power predictive policing algorithms, tenant screening systems, and automated benefits denial. Understanding how these tools work is not optional for communities that will be governed by them. TCIA's Cradle to Prison Algorithm initiative puts this directly: you cannot challenge algorithmic harm if you cannot name it. Open source AI literacy is a civil rights issue.
2022 – 2023
🤗
Open LLMs · AI Commons
Meta Releases LLaMA; Hugging Face Becomes the AI Commons
February 2023
Meta releases LLaMA model weights to researchers, triggering a wave of open large language models. Hugging Face — founded by Clément Delangue, Julien Chaumond, and Thomas Wolf — becomes the "GitHub of AI" with 500K+ models and datasets.
Expand: Bio & Solutions
👤
Key People
Clément Delangue
CEO of Hugging Face; French entrepreneur; previously led marketing at Moodstocks (acquired by Google)
Thomas Wolf
Chief Science Officer; led creation of Transformers library; physicist turned NLP researcher
LLaMA Team
Meta AI Research team including Hugo Touvron, Thibaut Lavril — released LLaMA-1 Feb 2023, LLaMA-2 July 2023 (commercially licensed), LLaMA-3 2024
Mistral AI
Founded 2023 by ex-DeepMind/Meta researchers Arthur Mensch, Guillaume Lample — Paris-based; released Mistral 7B as fully open source
🔧
Solutions Created
  • Hugging Face Transformers library — 500K+ pre-trained models, 100K+ datasets freely accessible
  • LLaMA / Llama 2 / Llama 3 — open weights LLMs enabling local inference without cloud dependency
  • Mistral 7B, Mixtral — open source models competitive with proprietary frontier models
  • PEFT / LoRA — parameter-efficient fine-tuning enabling model customisation on consumer hardware
  • Inference on edge (Ollama, llama.cpp) — run powerful AI locally; no data leaves the device
Hugging Face Model Growth
500K+ models hosted publicly (2024)500K+
🌱
Sustainability Impact
Local open LLMs dramatically reduce the energy cost per AI inference. Running Llama 3 8B locally on a laptop uses a fraction of the energy of a cloud API call. Open models also enable AI for environmental NGOs, climate researchers, and conservation organisations that cannot afford proprietary API costs — democratising access to transformative tools for planetary sustainability work.
What this means for your community
The opportunity — this is the moment
Open large language models are the most significant democratization of AI capability in history — and they arrived in 2023. Your community does not have to wait for Google or OpenAI to decide what AI is for. A neighborhood health clinic can run its own local AI on a laptop — no data leaving the building, no subscription, no corporate terms of service. A legal aid organization can build an AI tool trained on tenant rights law. A school can deploy an AI tutor that reflects its students' culture and language. The window is open right now, but it will not stay open. As TCIA's framework names: corporations are moving to re-enclose what the open source community built. Communities that learn to build, host, and govern their own AI tools in the next 18 months will have durable leverage. Communities that wait will be consumers of someone else's product again.
2024 – 2026
LF Energy · Climate Tech
Open Source Powers the Energy Transition
Ongoing
LF Energy (Linux Foundation) now hosts 30+ open source projects for the energy sector — from smart grid management to EV charging protocols. PyPSA, OpenDSS, and OpenEMS are becoming the shared infrastructure of the global energy transition.
Expand: Bio & Solutions
👤
Key Organisations
LF Energy
Linux Foundation sub-foundation; founded 2018; 50+ member organisations including RTE (France), EPRI, and major utilities
PyPSA
Python for Power Systems Analysis — open energy system modelling used by national grid planners worldwide
Open Climate Fix
UK nonprofit; uses open ML to improve solar power forecasting, reducing the need for gas backup power
OSPO Alliance
Open Source Programme Office network; promotes open source governance in public institutions across Europe
🔧
Solutions Created
  • PyPSA — models entire national energy systems; used by Germany, South Africa, and the EU to plan renewable transitions
  • OpenEMS — open energy management system for smart grids and microgrids
  • OperatorFabric — open source platform for real-time power grid operations (RTE, France)
  • Seapath — open source substation automation platform
  • Open Climate Fix solar nowcasting — ML forecasting that reduces gas peaker plant usage by predicting solar output 4hrs ahead
What this means for your community
The opportunity
The energy transition is not just an environmental issue — it is an economic justice issue. Who owns the solar panels on rooftops in North Minneapolis? Who controls the smart grid algorithms that decide which neighborhoods get power first during outages? Open source energy tools mean that community energy cooperatives can model their own microgrids, negotiate from an informed position with utilities, and eventually own local energy infrastructure. Cities like Minneapolis that have committed to clean energy goals can be held accountable through open data and open tools — and community members who understand those tools can sit at the table as informed advocates, not just witnesses. Energy sovereignty and data sovereignty are the same fight.
Every Day · Right Now
⎇ Daily Life Powered by Open Source
📱
Mobile · Communication
Your Smartphone (Android)
3.9 billion Android users worldwide
Every Android phone runs the Linux kernel at its core. The OS — from your notifications to your camera app — is built on the Android Open Source Project (AOSP). You use open source the moment you pick up your phone. [1]
Expand: Open Source Stack & Citations
🔧
Open Source Stack
🐧
Linux Kernel
Manages hardware, memory, and processes on every Android device [2]
📦
AOSP
Android Open Source Project — the base OS that Samsung, Google, and others build upon [3]
🌐
Chromium / WebKit
Open source browser engine powering Chrome, Samsung Browser, and the Android WebView used by every app [4]
🔒
OpenSSL / BoringSSL
Open source cryptography securing every HTTPS connection your phone makes [5]
🌱
Sustainability Note
AOSP's open nature enables repair-focused operating systems like /e/OS and LineageOS — extending phone lifespans and reducing e-waste. Community-maintained OS builds allow devices to receive security updates years beyond manufacturer support. [6]
What this means for your community
The opportunity
Your smartphone is a surveillance device you carry voluntarily — but it doesn't have to be. The same Linux kernel powering your Android can power one with no Google tracking, no targeted advertising, no data sent to corporations. LineageOS and GrapheneOS are free alternatives schools and organizations can deploy on existing hardware. For families concerned about children's data collected by school-issued devices, or organizers who need secure communications, these tools exist right now. Phone repair is also a community economic opportunity: refurbishing and reflashing devices with open OS builds creates local tech jobs and keeps hardware out of landfills.
🦊
Web Browsing · Privacy
Firefox & Chromium Browsers
~3 billion web users daily
Firefox is fully open source (Mozilla Public License). Chrome is built on the open source Chromium project. Every webpage you visit, every search you run, is rendered by open source browser engines. [7]
Expand: Open Source Stack & Citations
🔧
Open Source Stack
🦊
Mozilla Firefox
Fully open source; spawned from Netscape's 1998 open-source release; 180M+ users [8]
⚙️
Chromium
Open source base for Chrome, Edge, Brave, Opera, Arc — used by 65%+ of web users [9]
🕊️
V8 / SpiderMonkey
Open source JavaScript engines that execute every web app and interactive page [10]
🛡️
uBlock Origin
Open source ad/tracker blocker used by 40M+ people; community-maintained filter lists [11]
What this means for your community
The opportunity — one install, immediate impact
Switching to Firefox and installing uBlock Origin takes five minutes and immediately stops hundreds of advertising trackers from following your community members across the web. This is not a technical skill — it's a civic skill. Every school, church, community center, and neighborhood organization can make this switch today. For parents, it means children's browsing isn't profiled. For organizers, it means your research isn't being fed into surveillance capitalism's data economy. Digital privacy is not a luxury for the tech-savvy — it's a right, and open source browsers are one of the most accessible ways to exercise it. TCIA's data literacy workshops can teach this in under an hour.
🗺️
Navigation · Geography
Maps & Navigation (OpenStreetMap)
10 million+ contributors worldwide
OpenStreetMap (OSM) is the Wikipedia of maps — a free, editable map of the world built by volunteers. It powers Apple Maps, Bing Maps, Mapbox, Uber, Snapchat, and humanitarian disaster response. Every turn-by-turn direction you receive likely touches OSM data. [12]
Expand: Open Source Stack & Citations
🔧
Open Source Stack
🌍
OpenStreetMap
Founded 2004 by Steve Coast (UCL); ODbL-licensed map data used in 1M+ apps and services [13]
🗾
Leaflet.js
Open source JavaScript mapping library; powers interactive maps on millions of websites [14]
📍
OSRM / Valhalla
Open source routing engines that calculate driving, cycling, and walking directions [15]
🚑
HOT (Humanitarian OSM Team)
Uses OSM for disaster response mapping — mapped Puerto Rico after Hurricane Maria, Haiti after earthquakes [16]
🌱
Sustainability Note
OSM is foundational to environmental monitoring. Global Forest Watch, coral reef tracking, wildfire mapping, and flood risk modelling all use OSM base maps. The open licence means conservation organisations can integrate it freely — critical for underfunded environmental NGOs. [17]
What this means for your community
The opportunity
Your neighborhood's history, its landmarks, its community spaces — none of them exist on Google Maps unless Google decides they matter. OpenStreetMap is a map that any community member can edit, add to, and correct. Residents of North Minneapolis can map food access deserts, community gardens, and Black-owned businesses in ways that no corporate map platform will prioritize. Humanitarian mapping teams have used OSM to coordinate disaster response in communities corporations ignored. Mapping your community is an act of claiming it. TCIA can connect organizers to OSM mapping workshops where no technical background is required — just local knowledge.
💬
Messaging · Encryption
Secure Messaging (Signal Protocol)
End-to-end encrypts billions of messages daily
The Signal Protocol — created by Moxie Marlinspike and Trevor Perrin — is fully open source and encrypts not just Signal, but also WhatsApp (2B+ users), Facebook Messenger's secret conversations, Google Messages (RCS), and Skype private conversations. [18]
Expand: Open Source Stack & Citations
🔧
Open Source Stack
🔐
Signal Protocol
Double Ratchet + X3DH key exchange; open source; adopted by WhatsApp, Google, Microsoft [19]
📨
Signal App
Fully open source messenger; AGPLv3; audited by security researchers globally [20]
🛡️
OpenPGP / GnuPG
Open standard for email encryption; GNU Privacy Guard (GPG) implements it freely [21]
🌐
Let's Encrypt
Free, open certificate authority; provides HTTPS to 300M+ websites; run by ISRG non-profit [22]
What this means for your community
The opportunity — organizer security is community security
Surveillance is not paranoia — it is a documented fact of life for community organizers, activists, and advocates in the Twin Cities and beyond. Law enforcement has used social media monitoring, subpoenaed messaging records, and data requests to track organizing work. Signal's open source encryption means even the company cannot read your messages — not because you trust Signal, but because the math makes it impossible. Every community leader, housing advocate, youth organizer, and tenant rights worker should be on Signal today. TCIA can train your whole team in under an hour. This is not a tech workshop — it is a safety workshop.
📝
Productivity · Office
LibreOffice & Document Formats
200 million+ LibreOffice users globally
LibreOffice — the free, open source office suite — is used by 200M+ people and adopted by the governments of Italy, France, Germany, and Brazil as official alternatives to Microsoft Office. The OpenDocument Format (ODF) it created is an ISO standard. [23]
Expand: Open Source Stack & Citations
🔧
Open Source Stack
📄
LibreOffice
Writer, Calc, Impress, Draw; MPL/LGPL licensed; The Document Foundation [24]
📐
OpenDocument Format (ODF)
ISO/IEC 26300 standard born from open source; ensures document portability across all software [25]
📊
Apache OpenOffice
Apache-licensed predecessor; still used by 300M+ downloads since 2012 [26]
🏛️
Government Deployments
Munich (LiMux), French Gendarmerie (94K desktops), Italian Ministry of Defence all migrated to open source office suites [27]
What this means for your community
The opportunity — public dollars, public tools
Every Minneapolis and St. Paul public school that pays for Microsoft 365 is spending community tax dollars on a subscription to a corporation. LibreOffice does everything Microsoft Office does — for free, forever, with no data sent to corporate servers. Italy, France, and Germany have moved entire government agencies to LibreOffice. The question is not whether it works — it does. The question is whether there is political will to make the switch. Advocating for open source office tools in public institutions is a budget justice argument, a data privacy argument, and a sovereignty argument all at once. TCIA's policy work can frame this case for school boards and city councils today.
📺
Media · Entertainment
Streaming & Video (VLC, FFmpeg, Kodi)
5 billion+ VLC downloads worldwide
VLC media player (5B+ downloads) and FFmpeg — the open source audio/video processing engine — are the invisible infrastructure of media. Netflix, YouTube, Spotify, TikTok, and virtually every streaming platform use FFmpeg to encode and transcode video. [28]
Expand: Open Source Stack & Citations
🔧
Open Source Stack
🎬
VLC Media Player
GPLv2; plays virtually any media format; created at École Centrale Paris; 5B+ downloads [29]
FFmpeg
The codec engine behind Netflix, YouTube, and Twitch transcoding pipelines; LGPLv2.1 / GPLv2 [30]
🎵
Kodi / XBMC
Open source home theatre platform; 30M+ active users; powers smart TVs and set-top boxes [31]
🖼️
WebP / AV1 / Opus
Open codec formats (AOM consortium) reducing bandwidth — images load faster, video uses less data [32]
What this means for your community
The opportunity — own your media infrastructure
Every dollar your community spends on Netflix, YouTube Premium, or Spotify flows out. PeerTube — an open source, federated video platform — lets any organization host its own video channel with no algorithm deciding who sees it, no corporate terms of service, no data extraction. Community media organizations, youth programs, and cultural institutions can build their own video infrastructure. VLC plays any video file — including files from your own community archive, your oral histories, your cultural documentation — without requiring a subscription, without sending viewing data to corporations, and without an algorithm deciding what's worth watching. Open media tools are cultural sovereignty tools.
📚
Knowledge · Education
Wikipedia & Open Knowledge
1.7 billion unique visitors/month
Wikipedia runs on MediaWiki — free, open source software. Its 60M+ articles are CC-BY-SA licensed. The entire platform, its content, and its infrastructure (Linux servers, MariaDB, Elasticsearch) is open source. Knowledge, freely shared. [33]
Expand: Open Source Stack & Citations
🔧
Open Source Stack
📖
MediaWiki
GPLv2 wiki software; powers Wikipedia, Wiktionary, Wikimedia Commons — 60M+ articles globally [34]
🗃️
MariaDB
Open source MySQL fork powering Wikipedia's database layer; community-maintained fork after Oracle acquisition [35]
🔍
Elasticsearch (OpenSearch)
Open source full-text search powering Wikipedia's search; now forked as OpenSearch by Amazon [36]
🧠
Wikidata
Open, CC0-licensed structured knowledge base; feeds Google's Knowledge Graph and Alexa answers [37]
🌱
Sustainability Note
Wikimedia Foundation operates on renewable energy. Wikipedia's server infrastructure — 100% Linux — runs in data centres powered by certified green energy. Open knowledge reduces duplicated research globally, directly lowering the carbon cost of information production. [38]
What this means for your community
The opportunity — write your community into history
Wikipedia has a documented problem: communities of color, women, and non-Western cultures are systematically underrepresented. This is not an accident — it reflects who has historically had access to the internet, time, and confidence to contribute. Wikipedia edit-a-thons — organized community writing events — are one of the most direct ways to put your community's history, leaders, and knowledge on the record. TCIA has organized these events. Every article written about a Black Twin Cities entrepreneur, a Somali community institution, a Native leader, or a grassroots organization is a permanent, freely accessible piece of the public record — and it belongs to no corporation, no platform, and no algorithm. Your community's knowledge is worth encyclopedic space.
🏥
Healthcare · Life Sciences
Healthcare Infrastructure (OpenMRS, DICOM)
Powers hospitals in 40+ countries
OpenMRS — an open source medical records system — is used in 40+ countries and manages patient data for millions in low-resource settings. The DICOM standard (open) underpins every MRI and CT scan globally. Open source software saves lives where proprietary solutions are unaffordable. [39]
Expand: Open Source Stack & Citations
🔧
Open Source Stack
🏥
OpenMRS
MPL 2.0; electronic health records for HIV treatment, maternal care, and TB programmes in Africa and Asia [40]
🩻
DICOM / OHIF Viewer
Open standard for medical imaging; OHIF is an open source DICOM viewer used in 100+ hospital systems [41]
🧬
BioPython / R / Bioconductor
Open source genomics and bioinformatics tools powering COVID-19 sequencing, cancer research, drug discovery [42]
💊
AlphaFold (DeepMind / open)
Open source protein structure predictions for 200M+ proteins; accelerating vaccine and drug development [43]
What this means for your community
The opportunity — health data is community power
Who owns your medical records determines who profits from your health data. Proprietary EHR systems like Epic and Cerner have sold or licensed de-identified patient data to pharmaceutical companies and AI firms — often without meaningful patient consent. Open source health records systems put that data under institutional — and potentially community — control. More urgently: algorithmic systems are already being used to make decisions about pain management, benefit eligibility, and resource allocation in ways that have documented racial bias. Understanding and auditing these systems requires the same open source literacy this page teaches. TCIA's data justice work directly addresses algorithmic harm in public health systems — and every community member who understands these tools is one more voice that can hold institutions accountable.
present · 2026 — the window is open
GNU / Free Software
Linux Kernel
Open Web & Culture
Commercial & OSI
Cloud & Infrastructure
Open Source AI
Daily Life Solutions
Reclaim · Build · Anchor
Knowledge without action is just history.
D4PG turns it into power.

Every milestone on this tree is proof that communities — not corporations — built the most important infrastructure in human history. Now it's your turn.

Join TCIA at Data for Public Good 2026 to educate, equip, and activate.

tciamn.org · info@tciamn.org · 651-565-7376 · 1041 James Ave. N. Suite 1001 Minneapolis, MN 55411
Sources & Citations
APA 7th Edition · Verified March 2026 · Open access where available
[1]
StatCounter. (2024). Mobile operating system market share worldwide. StatCounter Global Stats. https://gs.statcounter.com/os-market-share/mobile/worldwide
[2]
Android Open Source Project. (2024). Android kernel overview. Google. https://source.android.com/docs/core/architecture/kernel
[3]
Android Open Source Project. (2024). About the Android Open Source Project. Google. https://source.android.com/
[4]
The Chromium Projects. (2024). Chromium — the open-source project behind Google Chrome. Google. https://www.chromium.org/chromium-projects/
[5]
Google. (2024). BoringSSL. Google Source. https://boringssl.googlesource.com/boringssl/
[6]
LineageOS Project. (2024). About LineageOS. LineageOS. https://lineageos.org/
[7]
Mozilla. (2024). What is a web browser? Mozilla Corporation. https://www.mozilla.org/en-US/firefox/browsers/what-is-a-browser/
[8]
Mozilla. (2024). gecko-dev: Read-only mirror of Mozilla's Mercurial source repository. GitHub. https://github.com/mozilla/gecko-dev
[9]
Google. (2024). Chromium source code repository. Google Source. https://chromium.googlesource.com/chromium/src
[10]
Google. (2024). V8 JavaScript engine. v8.dev. https://v8.dev/
[11]
Hill, R. (gorhill). (2024). uBlock Origin: An efficient blocker for Chromium and Firefox. GitHub. https://github.com/gorhill/uBlock
[12]
OpenStreetMap Foundation. (2024). About OpenStreetMap. OpenStreetMap. https://www.openstreetmap.org/about
[13]
OpenStreetMap Wiki. (2024). About OpenStreetMap. OpenStreetMap Wiki. https://wiki.openstreetmap.org/wiki/About_OpenStreetMap
[14]
Agafonkin, V. (2024). Leaflet — a JavaScript library for interactive maps. Leaflet. https://leafletjs.com/
[15]
Project OSRM. (2024). Open Source Routing Machine. project-osrm.org. http://project-osrm.org/
[16]
Humanitarian OpenStreetMap Team. (2024). About HOT. HOT. https://www.hotosm.org/
[17]
World Resources Institute. (2024). Global Forest Watch. WRI. https://www.globalforestwatch.org/
[18]
Signal Foundation. (2024). Signal technical documentation. Signal. https://signal.org/docs/
[19]
Signal Foundation. (2024). libsignal: Signal Protocol library. GitHub. https://github.com/signalapp/libsignal
[20]
Signal Foundation. (2024). Signal-Android: Source code for Signal on Android. GitHub. https://github.com/signalapp/Signal-Android
[21]
Free Software Foundation Europe. (2024). GNU Privacy Guard (GnuPG). gnupg.org. https://gnupg.org/
[22]
Internet Security Research Group. (2024). About Let's Encrypt. Let's Encrypt. https://letsencrypt.org/about/
[23]
The Document Foundation. (2024). Who are we? LibreOffice. https://www.libreoffice.org/about-us/who-are-we/
[24]
The Document Foundation. (2024). LibreOffice core source code. GitHub. https://github.com/LibreOffice/core
[25]
OASIS Open. (2024). OASIS Open Document Format for Office Applications (OpenDocument) TC. OASIS. https://www.oasis-open.org/committees/tc_home.php?wg_abbrev=office
[26]
Apache Software Foundation. (2024). Apache OpenOffice. openoffice.org. https://www.openoffice.org/
[27]
European Commission. (2024). Open Source Observatory (OSOR). Joinup. https://joinup.ec.europa.eu/collection/open-source-observatory-osor
[28]
VideoLAN. (2024). VLC 3.0.21 release. VideoLAN. https://www.videolan.org/vlc/releases/3.0.21.html
[29]
VideoLAN. (2024). VLC media player source code. GitHub. https://github.com/videolan/vlc
[30]
FFmpeg Project. (2024). FFmpeg: A complete, cross-platform solution to record, convert and stream audio and video. ffmpeg.org. https://ffmpeg.org/
[31]
Kodi Foundation. (2024). About Kodi. kodi.tv. https://kodi.tv/about/
[32]
Alliance for Open Media. (2024). About the Alliance for Open Media. aomedia.org. https://aomedia.org/
[33]
Wikimedia Foundation. (2024). Wikipedia. Wikimedia Foundation. https://wikimediafoundation.org/our-work/wikipedia/
[34]
Wikimedia Foundation. (2024). MediaWiki. mediawiki.org. https://www.mediawiki.org/wiki/MediaWiki
[35]
MariaDB Foundation. (2024). About MariaDB. mariadb.org. https://mariadb.org/
[36]
OpenSearch Project. (2024). OpenSearch — open source search and analytics suite. opensearch.org. https://opensearch.org/
[37]
Wikimedia Foundation. (2024). Wikidata: Introduction. wikidata.org. https://www.wikidata.org/wiki/Wikidata:Introduction
[38]
Wikimedia Foundation. (2024). Sustainability initiative. Wikimedia Meta-Wiki. https://meta.wikimedia.org/wiki/Sustainability_Initiative
[39]
OpenMRS Inc. (2024). About OpenMRS. openmrs.org. https://openmrs.org/about/
[40]
OpenMRS Inc. (2024). OpenMRS core source code. GitHub. https://github.com/openmrs/openmrs-core
[41]
Open Health Imaging Foundation. (2024). OHIF Viewer. ohif.org. https://ohif.org/
[42]
Bioconductor Project. (2024). About Bioconductor. bioconductor.org. https://www.bioconductor.org/
[43]
DeepMind & EMBL-EBI. (2024). AlphaFold protein structure database. alphafold.ebi.ac.uk. https://alphafold.ebi.ac.uk/
D4PG Community Tools Guide · Data for Public Good 2026
Know What You're Using — and What It Costs You
Every tool rated by Data Privacy · UX/UI · Security · Skill Level · Community Power — from the tools that extract from your community to the ones that build it
The apps on your phone were not designed with your community's interests in mind. Some of them were designed against them. This guide helps you make informed choices — and points toward open alternatives that put power back in your hands.

Use the category filter to find tools relevant to your work.
✓ Good — Functional & accessible
◈ Better — Strong all-round
★ Best — Gold standard
✕ Worst — Avoid or use cautiously
🐧
Mobile OS
LineageOS
★ Best
Data Privacy
95
UX / UI
62
Security
92
Openness
100
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: No Google services by default; no telemetry; granular permission controls per app
  • 🖥️UX/UI: Stock Android look; functional but requires manual setup; not beginner-friendly
  • 🛡️Security: Monthly patches; exploit mitigations; SELinux enforcing; verified boot support
  • 🎓Skill: Advanced — requires bootloader unlock, ADB commands, manual flashing via recovery
  • 🌱Sustainability: Extends device lifespan 3–5 years beyond manufacturer EOL, directly reducing e-waste
  • Community power: Phone repair co-ops using LineageOS create local jobs and keep devices out of landfills — a Black/Brown community economic opportunity hiding in plain sight
📦
Mobile OS
GrapheneOS
★ Best
Data Privacy
99
UX / UI
71
Security
99
Openness
98
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: Hardened memory allocator; sandboxed Google Play option; network/sensor permissions per-app; no identifiers
  • 🖥️UX/UI: Clean AOSP UI; Pixel-exclusive; web-based installer greatly simplifies setup
  • 🛡️Security: Strongest mobile OS security hardening available; used by journalists and activists globally
  • 🎓Skill: Intermediate–Advanced; web installer reduces barrier but Pixel device required
🤖
Mobile OS
Stock Android (AOSP-based)
✓ Good
Data Privacy
48
UX / UI
90
Security
70
Openness
55
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: Google collects usage data; location history enabled by default; requires manual opt-out of telemetry
  • 🖥️UX/UI: Polished, familiar, massive app ecosystem — best day-one experience for new users
  • 🛡️Security: Monthly patches on Pixel; slower on OEM devices; Play Protect provides baseline malware scanning
  • 🎓Skill: Novice — zero setup required; works out of the box
⚠️
Mobile OS
Heavily Skinned Android (Bloatware OEMs)
✕ Worst
Data Privacy
22
UX / UI
55
Security
35
Openness
10
Skill Level Required
NoviceExpert
Why to avoid
  • 🔒Privacy: Pre-installed spyware/adware; vendor telemetry; unremovable data-harvesting apps (e.g. some Xiaomi, Oppo builds)
  • 🖥️UX/UI: Cluttered with bloatware; intrusive ads in system apps; slow UI due to heavy customisation
  • 🛡️Security: Security patches delayed 6–18 months; often abandoned after 2 years despite devices remaining in use
  • 🎓Skill: Novice — deceptively easy, but impossible to truly secure without rooting
🛡️
Browser
Firefox + uBlock Origin
★ Best
Data Privacy
93
UX / UI
85
Security
90
Openness
100
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: Enhanced Tracking Protection blocks 1000s of trackers; no Google deal dependency; fully auditable source
  • 🖥️UX/UI: Clean, customisable; rich extension ecosystem; excellent developer tools; cross-device sync via Firefox account
  • 🛡️Security: Rapid patching; sandboxed processes; uBlock Origin blocks malvertising and script injection
  • 🎓Skill: Novice-friendly install; install uBlock Origin from Add-ons in 30 seconds — zero configuration needed
🦁
Browser
Brave Browser
◈ Better
Data Privacy
88
UX / UI
91
Security
87
Openness
78
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: Built-in ad/tracker blocking; fingerprint randomisation; Tor integration for private windows
  • 🖥️UX/UI: Polished Chrome-like interface; fastest cold-start of major browsers; minimal learning curve
  • 🛡️Security: Chromium base inherits V8 security; Brave Shields replaces uBlock for most users
  • 🎓Skill: Novice — privacy-by-default; no extensions needed for basic protection
  • ⚠️Caveat: Brave Rewards crypto system adds commercial layer; core browser remains open source (Apache 2.0)
🔴
Browser
Google Chrome (unmodified)
✕ Worst
Data Privacy
28
UX / UI
95
Security
75
Openness
20
Skill Level Required
NoviceExpert
Why to avoid
  • 🔒Privacy: Extensive Google telemetry; tied to Google account syncing; Manifest V3 weakens ad-blocking extensions
  • 🖥️UX/UI: Excellent — the standard other browsers are measured against; best web app compatibility
  • 🛡️Security: Fast patches; sandboxing good — but proprietary additions make full audit impossible
  • 🎓Skill: Novice — near zero friction; but privacy trade-offs are invisible to most users
🌍
Maps & Navigation
OsmAnd (Offline Maps)
★ Best
Data Privacy
96
UX / UI
58
Security
90
Openness
100
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: Fully offline — GPS used locally, no location data sent to servers; no account required
  • 🖥️UX/UI: Powerful but dense interface; steep learning curve vs Google Maps; excellent for hiking/cycling routing
  • 🛡️Security: GPLv2; no server-side attack surface; maps stored locally
  • 🎓Skill: Beginner-to-intermediate; download maps region-by-region; plugin system adds complexity
  • 🌱Sustainability: No data centre load for routing; offline maps work without mobile data — critical in areas with poor connectivity
🗺️
Maps & Navigation
Organic Maps
◈ Better
Data Privacy
97
UX / UI
78
Security
91
Openness
100
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: Apache 2.0; zero tracking, zero ads, zero data collection — privacy by architecture
  • 🖥️UX/UI: Clean, intuitive interface — the closest OSM app to Google Maps in user experience
  • 🛡️Security: Fully offline; community-audited; F-Droid available avoiding Play Store
  • 🎓Skill: Novice — installs like any app; download a region and go
📍
Maps & Navigation
Google Maps (always-on location)
✕ Worst
Data Privacy
18
UX / UI
97
Security
65
Openness
5
Skill Level Required
NoviceExpert
Why to avoid
  • 🔒Privacy: Records your complete location timeline by default; used to build advertising profiles; shared with law enforcement via geofence warrants
  • 🖥️UX/UI: Undeniably the best map UX on the market — live traffic, real-time transit, immersive view
  • 🛡️Security: Proprietary server-side; cannot audit data handling; requires Google account
  • 🎓Skill: Novice — instant usability; privacy costs invisible
🔐
Messaging
Signal
★ Best
Data Privacy
99
UX / UI
84
Security
99
Openness
97
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: Collects only your phone number; sealed sender; disappearing messages; no metadata stored on servers
  • 🖥️UX/UI: Clean, fast; voice/video calls; stories; close to WhatsApp in experience
  • 🛡️Security: AGPLv3; double-ratchet E2EE; audited by independent security researchers; used by UN, journalists, activists
  • 🎓Skill: Novice — install from App Store / Play Store in 2 minutes
💬
Messaging
Matrix / Element
◈ Better
Data Privacy
88
UX / UI
70
Security
86
Openness
100
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: Federated, self-hostable; E2EE by default in DMs; choose your own server or run your own
  • 🖥️UX/UI: Feature-rich (threads, spaces, bridges to Slack/Discord); interface can feel complex for new users
  • 🛡️Security: Apache 2.0; independent security audits; used by French government (matrix.org)
  • 🎓Skill: Intermediate — register on matrix.org is easy; self-hosting requires server admin knowledge
📵
Messaging
WhatsApp (Meta-owned)
✕ Worst
Data Privacy
30
UX / UI
93
Security
60
Openness
8
Skill Level Required
NoviceExpert
Why to avoid
  • 🔒Privacy: Metadata harvested by Meta (who contacts, when, where, how often); 2021 TOS forces data sharing with Facebook
  • 🖥️UX/UI: Best-in-class UX; 2B users globally; unavoidable social pressure
  • 🛡️Security: Uses Signal Protocol for E2EE content, but backup encryption and metadata handling remain opaque
  • 🎓Skill: Novice — zero friction but zero transparency
📄
Productivity
LibreOffice
★ Best
Data Privacy
97
UX / UI
72
Security
88
Openness
100
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: Fully offline; no telemetry by default; documents stay on your machine
  • 🖥️UX/UI: Familiar ribbon-style UI; imports/exports DOCX, XLSX, PPTX; macro support; less polished than MS Office
  • 🛡️Security: MPL 2.0; community patches; no subscription lock-in; ODF format is ISO standard — no vendor lock
  • 🎓Skill: Novice — anyone familiar with Word/Excel can use it within minutes
  • 🏛️Government Use: Italy, France, Germany, Brazil — officially deployed across public sector
✏️
Productivity
Nextcloud (Self-hosted Drive)
◈ Better
Data Privacy
98
UX / UI
78
Security
90
Openness
98
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: You own your data entirely — cloud sync with zero third-party access; E2EE option available
  • 🖥️UX/UI: Google Drive-like web UI; mobile apps; collaborative document editing via Collabora/OnlyOffice integration
  • 🛡️Security: AGPLv3; 2FA; LDAP integration; audit logs; HiTrust-eligible when self-hosted
  • 🎓Skill: Intermediate — self-hosting requires a VPS or home server; managed Nextcloud providers available for novices
☁️
Productivity
Google Docs / Microsoft 365 (cloud-only)
✕ Worst
Data Privacy
25
UX / UI
97
Security
65
Openness
5
Skill Level Required
NoviceExpert
Why to avoid
  • 🔒Privacy: All documents stored on corporate servers; Google/Microsoft scan document content for AI training and advertising signals
  • 🖥️UX/UI: Best-in-class collaboration tools; real-time co-editing; AI integration — unmatched convenience
  • 🛡️Security: SOC2 compliant but proprietary — you trust their security claims, you cannot verify them
  • 🎓Skill: Novice — zero barrier; but vendor lock-in grows invisibly over time
🎬
Media & Video
VLC + PeerTube
★ Best
Data Privacy
96
UX / UI
82
Security
90
Openness
100
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: VLC sends zero telemetry; PeerTube is federated with no central algorithm manipulation
  • 🖥️UX/UI: VLC: clean, plays everything; PeerTube: YouTube-like UI; smaller content library
  • 🛡️Security: GPLv2; no account required for VLC; PeerTube instances independently administered
  • 🎓Skill: Novice for VLC; beginner-to-intermediate for navigating PeerTube federation
📺
Media & Video
YouTube (Google) — signed-in, no ad blocker
✕ Worst
Data Privacy
15
UX / UI
98
Security
60
Openness
5
Skill Level Required
NoviceExpert
Why to avoid (unmitigated)
  • 🔒Privacy: Watch history, search, and engagement data used to build behavioural advertising profiles and recommendation algorithms
  • 🖥️UX/UI: World's best video platform — unrivalled content breadth; use with uBlock Origin + Firefox as mitigation
  • 🛡️Security: Proprietary; account required for full use; centralised content moderation with opaque appeals
  • 🎓Skill: Novice — but mitigating privacy risks (Invidious, NewPipe, uBlock) requires beginner–intermediate skill
📖
Knowledge
Wikipedia + Kiwix (Offline)
★ Best
Data Privacy
95
UX / UI
88
Security
92
Openness
100
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: Wikipedia is CC-BY-SA, publicly readable with no account; Kiwix provides fully offline access — zero network calls
  • 🖥️UX/UI: Clean, fast, consistent; Kiwix app makes offline Wikipedia available in classrooms without internet access
  • 🛡️Security: GPLv2 (MediaWiki); no login required to read; HTTPS enforced sitewide
  • 🎓Skill: Novice — use Wikipedia as a web page; Kiwix download is a one-click install + ZIM file download
  • 🌱Sustainability: Wikimedia Foundation runs entirely on renewable energy; Kiwix enables education in off-grid communities
🏥
Healthcare
OpenMRS + FHIR Standard
★ Best
Data Privacy
92
UX / UI
62
Security
88
Openness
100
Skill Level Required
NoviceExpert
What it covers
  • 🔒Privacy: Self-hosted; patient data stays in-country; HIPAA/GDPR-compatible deployment patterns; audit trails built-in
  • 🖥️UX/UI: Functional clinical workflow UI; requires training; new 3.x UI is significantly improved
  • 🛡️Security: MPL 2.0; FHIR R4 interoperability standard ensures no proprietary lock-in for patient records
  • 🎓Skill: Advanced for deployment (Java, MySQL, server admin); clinical users need structured training
  • 🌱Sustainability: Replaces paper-based records in 40+ countries — measurably improves health outcomes without proprietary licence costs
🏢
Healthcare
Closed Proprietary EHR (Epic, Cerner — locked)
✕ Worst
Data Privacy
40
UX / UI
65
Security
60
Openness
5
Skill Level Required
NoviceExpert
Why to avoid
  • 🔒Privacy: Proprietary data formats; patient data can be sold to third parties under terms unreadable to patients; interoperability legally blocked in some contracts
  • 🖥️UX/UI: Costly, training-intensive; UX notoriously poor despite high licence costs — contributing to clinician burnout
  • 🛡️Security: Cannot audit source code; multiple major EHR breaches (Change Healthcare 2024 — 100M records exposed)
  • 🎓Skill: Intermediate — requires expensive vendor training; data cannot be freely migrated
Knowledge is the first step
Now bring it to D4PG.

Join TCIA at Data for Public Good — July 15–17, 2026 — to go deeper on every tool in this guide with fellow community members, educators, organizers, and technologists.