head to head · open source
langchain vs eko
langchain has 148,892 GitHub stars, 25,031 forks, 492 open issues and last shipped yesterday. eko has 4,960 stars, 445 forks, 15 open issues and last shipped 8 months ago. langchain leads on adoption by 2,902% (148,892 vs 4,960 stars). langchain is written in Python under MIT; eko is written in TypeScript under MIT. langchain has attracted 17% as many forks as stars, eko 9%. langchain was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (agents, 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 | eko | |
|---|---|---|
| GitHub stars | ★ 149K | ★ 5.0K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-03-03 |
| Forks | ⑂ 25K | ⑂ 445 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick langchain if
- You weight community size — 149K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick eko if
- You want the eko feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and eko 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 eko
Eko Build Production ready Agentic Workflow with Natural Language Eko (pronounced like 'echo') is a production ready JavaScript framework that enables developers to create reliable agents, from simple commands to complex workflows . It provides a unified interface for running agents in both computer and browser environments . News 2025 11: Eko 4.0 supports chat conversations & optimizes agent logic. 2025 09: Eko 3.0 introduces dependency aware parallel agent execution. 2025 09: New pause, resume, and interrupt controls with task snapshot workflow recovery. 2025 09: Monorepo tooling migrated to pnpm for…
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Frequently asked questions
Is langchain or eko more popular?
langchain has 148,892 GitHub stars and eko has 4,960. langchain has the larger community by that measure.
Are langchain and eko free?
Both are open source. langchain is licensed under MIT and eko under MIT. Neither carries a licence fee.
What is the difference between langchain and eko?
langchain is written in Python and eko in TypeScript. 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 eko?
Choose langchain if you want the larger community (148,892 stars) or its MIT licence terms. Choose eko if its feature set, stack or MIT licence fits better. Both are self-hostable.