Open source sdk projects
Every project in the registry tagged sdk, ranked by real GitHub adoption.
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Univer is a full-stack framework for creating and editing spreadsheets / word processor / presentation on both web and server.
A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.
🧩 The Browser Extension Framework
OpenAI's Codex Security CLI and TypeScript SDK for finding, validating, and fixing security vulnerabilities. npm: https://www.npmjs.com/package/@openai/codex-se
👨🚀 Turn API specifications into production-ready SDKs, validators, mocks, and more. 20+ plugins. Millions of weekly npm downloads. Used by Vercel, OpenCode,
PowerWechat是一款基于WeChat SDK for Golang，支持小程序、微信支付、企业微信、公众号等全微信生态
Build fast and accurate GenAI apps with GraphRAG SDK at scale 🌟
Frequently asked questions
How many open source sdk projects are there?
This registry tracks 8 projects tagged sdk, with 110,515 GitHub stars between them. The most-adopted is Tldraw at 50,422 stars.
Are these sdk projects free to use?
Yes — 7 of the 8 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which sdk project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these sdk projects still maintained?
8 of the 8 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.