head to head · open source

Langflow vs msw

Langflow has 156,266 GitHub stars, 10,311 forks, 1,056 open issues and last shipped yesterday. msw has 18,329 stars, 644 forks, 37 open issues and last shipped 17 days ago. Langflow leads on adoption by 753% (156,266 vs 18,329 stars). Langflow is written in Python under MIT; msw is written in TypeScript under MIT. Langflow has attracted 7% as many forks as stars, msw 4%. Langflow 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.

Langflow ★ 156K msw ★ 18K category Developer Tools

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Side by side

Langflow msw
GitHub stars ★ 156K ★ 18K
License MIT MIT
Written in Python TypeScript
Last push 2026-11-02 2026-10-17
Forks ⑂ 10K ⑂ 644
Self-hosting Yes Yes
Data ownership Your server Your server

pick Langflow if

  • You weight community size — 156K stars and counting
  • You want the MIT license terms
  • Your stack matches Python
  • You value the larger contributor base for long-term maintenance

full Langflow profile →

pick msw if

  • You want the msw feature set and don't need the biggest community
  • You prefer the MIT license terms
  • Your stack matches TypeScript
  • You evaluated both and msw fits your workflow better

full msw profile →

About Langflow

Langflow is a powerful platform for building and deploying AI powered agents and workflows. It provides developers with both a visual authoring experience and built in API and MCP servers that turn every workflow into a tool that can be integrated into applications built on any framework or stack. Langflow comes with batteries included and supports all major LLMs, vector databases and a growing library of AI tools. ✨ Highlight features Visual builder interface to quickly get started and iterate. Source code access lets you customize any component using Python. Interactive playground to immediately test and…

read the full Langflow overview →

About msw

Mock Service Worker Industry standard API mocking for JavaScript. Join our Discord server Features Seamless . A dedicated layer of requests interception at your disposal. Keep your application's code and tests unaware of whether something is mocked or not. Deviation free . Request the same production resources and test the actual behavior of your app. Augment an existing API, or design it as you go when there is none. Familiar & Powerful . Use Express like routing syntax to intercept requests. Use parameters, wildcards, and regular expressions to match requests, and respond with necessary status codes, headers…

read the full msw overview →

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Frequently asked questions

Is Langflow or msw more popular?

Langflow has 156,266 GitHub stars and msw has 18,329. Langflow has the larger community by that measure.

Are Langflow and msw free?

Both are open source. Langflow is licensed under MIT and msw under MIT. Neither carries a licence fee.

What is the difference between Langflow and msw?

Langflow is written in Python and msw 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 msw?

Choose Langflow if you want the larger community (156,266 stars) or its MIT licence terms. Choose msw if its feature set, stack or MIT licence fits better. Both are self-hostable.