head to head · open source
langchain vs ANUS
langchain has 149,524 GitHub stars, 25,131 forks, 492 open issues and last shipped yesterday. ANUS has 6,561 stars, 919 forks, 73 open issues and last shipped 2 months ago. langchain leads on adoption by 2,179% (149,524 vs 6,561 stars). langchain is written in Python under MIT; ANUS is written in JavaScript under MIT. langchain has attracted 17% as many forks as stars, ANUS 14%. langchain was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| langchain | ANUS | |
|---|---|---|
| GitHub stars | ★ 150K | ★ 6.6K |
| License | MIT | MIT |
| Written in | Python | JavaScript |
| Last push | 2026-11-14 | 2026-10-01 |
| Forks | ⑂ 25K | ⑂ 919 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick langchain if
- You weight community size — 150K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick ANUS if
- You want the ANUS feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and ANUS fits your workflow better
About langchain
The agent engineering platform. LangChain is a framework for building agents and LLM powered applications. It helps you chain together interoperable components and third party integrations to simplify AI application development — all while future proofing decisions as the underlying technology evolves. [!TIP] Just getting started? Check out Deep Agents — a higher level package built on LangChain for agents that have built in capabilities for common usage patterns such as planning, subagents, file system usage, and more. Quickstart If you're looking for more advanced customization or agent orchestration, check…
read the full langchain overview →
About ANUS
ANUS A free coding agent in your terminal. It reads your code, edits files and runs commands, like the paid ones. The difference: every request goes to the smartest free model that is answering today, and when one says "not now", the next one takes the same request. You pay nothing. Watch it with sound on X (22 s) · download the video or Needs Node.js 22.19 or newer. First run ANUS asks for at least one free key. Each takes a minute to get: Start with OpenRouter. More keys mean more free requests a day and more models to fall back on. Change keys any time with anus setup . How "free" works ANUS keeps a ranked…
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Frequently asked questions
Is langchain or ANUS more popular?
langchain has 149,524 GitHub stars and ANUS has 6,561. langchain has the larger community by that measure.
Are langchain and ANUS free?
Both are open source. langchain is licensed under MIT and ANUS under MIT. Neither carries a licence fee.
What is the difference between langchain and ANUS?
langchain is written in Python and ANUS in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, langchain or ANUS?
Choose langchain if you want the larger community (149,524 stars) or its MIT licence terms. Choose ANUS if its feature set, stack or MIT licence fits better. Both are self-hostable.