head to head · open source
Langflow vs Kilo
Langflow has 154,943 GitHub stars, 10,108 forks, 1,056 open issues and last shipped yesterday. Kilo has 27,341 stars, 3,165 forks, 586 open issues and last shipped yesterday. Langflow leads on adoption by 467% (154,943 vs 27,341 stars). Langflow is written in Python under MIT; Kilo is written in TypeScript under MIT. Langflow has attracted 7% as many forks as stars, Kilo 12%. Langflow was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (chatgpt), 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
| Langflow | Kilo | |
|---|---|---|
| GitHub stars | ★ 155K | ★ 27K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 10K | ⑂ 3.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Langflow if
- You weight community size — 155K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Kilo if
- You want the Kilo feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and Kilo fits your workflow better
About Langflow
Langflow is a visual builder platform for designing, testing, and deploying AI agents and retrieval augmented generation (RAG) pipelines. It lives in the Python based generative AI ecosystem and targets developers building intelligent applications. The project provides a low code interface to assemble components—such as LLMs, vector stores, memory modules, and tools—into executable workflows, while also exposing those workflows as APIs or MCP servers for integration into external applications.
read the full Langflow overview →
About Kilo
Kilo is an open source AI coding agent platform that integrates into VS Code, JetBrains IDEs, the CLI, and cloud environments. It enables developers to build, ship, and iterate faster by acting as an autonomous or semi autonomous coding assistant across their entire workflow. Built in TypeScript and licensed under MIT, it supports 500+ models—including GPT 5.5, Claude Opus 4.7, Claude Sonnet 4.6, and Gemini 3.1 Pro Preview—without vendor lock in or markup.
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Frequently asked questions
Is Langflow or Kilo more popular?
Langflow has 154,943 GitHub stars and Kilo has 27,341. Langflow has the larger community by that measure.
Are Langflow and Kilo free?
Both are open source. Langflow is licensed under MIT and Kilo under MIT. Neither carries a licence fee.
What is the difference between Langflow and Kilo?
Langflow is written in Python and Kilo 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, Langflow or Kilo?
Choose Langflow if you want the larger community (154,943 stars) or its MIT licence terms. Choose Kilo if its feature set, stack or MIT licence fits better. Both are self-hostable.