What is 100-free-open-source-github-repos?

This repository is a curated list of 100 open-source GitHub projects that the author considers worth knowing about as of 2026. Unlike a simple link collection, each entry comes with a note about the catch: an honest assessment of a limitation, restriction, or hidden cost that the project's marketing might not make obvious. The author points out that open-source does not mean permissive licensing, that self-hosting has real costs, and that a free tier is not the same as free. The list is organized into 10 sections covering different areas: AI coding agents and builder tools, self-hosted alternatives to paid software services, LLM tooling beyond just agents, everyday developer utilities, learning resources and roadmaps, design and frontend components, data collection and analytics tools, security and privacy tools, blockchain and crypto tools for builders, and content creation tools for independent creators. Each section lives in its own Markdown file, and a longer article.md file contains the full written piece in one place. The repository functions more as a written article or reference guide than as software. There is no code to run. The value is the curation and the honest-catch framing, which tries to give readers a realistic picture of what adopting each tool actually involves. Contributions are welcome but require the same honest-catch format, meaning you cannot submit a repo without explaining the tradeoff or limitation that comes with it. The project is released under the MIT license.