52,555 open-source repos listed on GitHub Topics

GitHub’s open-source topic now lists 52,555 public repositories.

What changed

The GitHub Topics page for open source shows a large, active catalog of public projects, with 52,555 repositories indexed under the tag. The page is now a live snapshot of what developers are building and sharing across languages, tools, and infrastructure.

The ranking is led by familiar high-traffic projects such as public-apis, prompts.chat, system-prompts-and-models-of-ai-tools, and LangChain. GitHub also surfaces language counts directly on the page, with Python, TypeScript, and JavaScript taking the top three slots.

• Python: 10,044 repos
• TypeScript: 8,747 repos
• JavaScript: 6,957 repos
• HTML: 3,668 repos
• Java: 1,685 repos
• C++: 1,459 repos
• C#: 1,140 repos

Why it matters

For developers, the topic page is a quick way to find widely used libraries, starter kits, and niche tools without leaving GitHub’s search flow. It also shows where open-source attention is going, especially toward AI tooling, developer productivity, and documentation projects.

For the market, the page doubles as a demand signal. Projects with high stars and recent updates can draw contributors, users, and sponsors faster, while category counts hint at which languages are still pulling the most open-source activity.

The takeaway: GitHub’s open-source topic is less a directory than a live leaderboard of what the developer community is building right now.