head to head · open source
langgraph vs CopilotKit
langgraph has 44,336 GitHub stars, 7,622 forks, 786 open issues and last shipped yesterday. CopilotKit has 38,475 stars, 4,798 forks, 295 open issues and last shipped yesterday. langgraph leads on adoption by 15% (44,336 vs 38,475 stars). langgraph is written in Python under MIT; CopilotKit is written in TypeScript under MIT. langgraph has attracted 17% as many forks as stars, CopilotKit 12%. CopilotKit 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), 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
| langgraph | CopilotKit | |
|---|---|---|
| GitHub stars | ★ 44K | ★ 38K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 7.6K | ⑂ 4.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick langgraph if
- You weight community size — 44K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick CopilotKit if
- You want the CopilotKit feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and CopilotKit fits your workflow better
About langgraph
Low level orchestration framework for building stateful agents. Trusted by companies shaping the future of agents – including Klarna, Replit, Elastic, and more – LangGraph is a low level orchestration framework for building, managing, and deploying long running, stateful agents. [!TIP] If you're looking to quickly build agents, check out Deep Agents — a higher level package built on LangGraph for agents that can plan, use subagents, and leverage file systems for complex tasks. For an equivalent JS/TS library, check out LangGraph.js and the JS docs. Why use LangGraph? LangGraph provides low level supporting…
read the full langgraph overview →
About CopilotKit
CopilotKit Docs · Examples · CopilotKit Intelligence · Discord Build agent native applications — on any framework, on any surface. Generative UI, shared state, and human in the loop workflows for React, Angular, Vue, React Native — and in Slack and Microsoft Teams. What is CopilotKit? CopilotKit is a best in class SDK for building full stack agentic applications, Generative UI, and chat applications. What started as a React library is now the horizontal layer between your agents and your users : the same agent can power your web app, your mobile app, and your team's Slack or Microsoft Teams workspace. We are the…
read the full CopilotKit overview →
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Frequently asked questions
Is langgraph or CopilotKit more popular?
langgraph has 44,336 GitHub stars and CopilotKit has 38,475. langgraph has the larger community by that measure.
Are langgraph and CopilotKit free?
Both are open source. langgraph is licensed under MIT and CopilotKit under MIT. Neither carries a licence fee.
What is the difference between langgraph and CopilotKit?
langgraph is written in Python and CopilotKit 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, langgraph or CopilotKit?
Choose langgraph if you want the larger community (44,336 stars) or its MIT licence terms. Choose CopilotKit if its feature set, stack or MIT licence fits better. Both are self-hostable.