head to head · open source
langchain vs OpenCLI
langchain has 146,538 GitHub stars, 24,504 forks, 492 open issues and last shipped yesterday. OpenCLI has 29,393 stars, 2,873 forks, 263 open issues and last shipped 19 days ago. langchain leads on adoption by 399% (146,538 vs 29,393 stars). langchain is written in Python under MIT; OpenCLI is written in JavaScript under Apache-2.0. langchain has attracted 17% as many forks as stars, OpenCLI 10%. langchain was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-agents), so they are genuine substitutes rather than adjacent tools.
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 | OpenCLI | |
|---|---|---|
| GitHub stars | ★ 147K | ★ 29K |
| License | MIT | Apache-2.0 |
| Written in | Python | JavaScript |
| Last push | 2026-09-17 | 2026-08-30 |
| Forks | ⑂ 25K | ⑂ 2.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick langchain if
- You weight community size — 147K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick OpenCLI if
- You want the OpenCLI feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and OpenCLI fits your workflow better
About langchain
LangChain is an open source framework for building agents and LLM powered applications, written in Python and released under the MIT license. It lives in the AI and machine learning ecosystem, specifically among AI development platforms, and it works by chaining together interoperable components and third party integrations so that AI application development becomes simpler. The project describes itself as the agent engineering platform, and its abstractions are designed to keep applications working as the underlying technology evolves.
read the full langchain overview →
About OpenCLI
OpenCLI is an Apache 2.0 JavaScript tool that turns websites, live browser sessions, Electron apps and local command line tools into deterministic CLI commands that both people and AI agents can call.
read the full OpenCLI overview →
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Frequently asked questions
Is langchain or OpenCLI more popular?
langchain has 146,538 GitHub stars and OpenCLI has 29,393. langchain has the larger community by that measure.
Are langchain and OpenCLI free?
Both are open source. langchain is licensed under MIT and OpenCLI under Apache-2.0. Neither carries a licence fee.
What is the difference between langchain and OpenCLI?
langchain is written in Python and OpenCLI 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 OpenCLI?
Choose langchain if you want the larger community (146,538 stars) or its MIT licence terms. Choose OpenCLI if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.