head to head · open source
Langflow vs mex
Langflow has 156,397 GitHub stars, 10,349 forks, 1,056 open issues and last shipped yesterday. mex has 1,794 stars, 152 forks, 53 open issues and last shipped 4 days ago. Langflow leads on adoption by 8,618% (156,397 vs 1,794 stars). Langflow is written in Python under MIT; mex is written in TypeScript under MIT. Langflow has attracted 7% as many forks as stars, mex 8%. 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.
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Side by side
| Langflow | mex | |
|---|---|---|
| GitHub stars | ★ 156K | ★ 1.8K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-07 | 2026-11-04 |
| Forks | ⑂ 10K | ⑂ 152 |
| 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
pick mex if
- You want the mex feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and mex fits your workflow better
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 mex
Shared project memory for engineers and their coding agents. MEX keeps your team's architecture, decisions, requirements, and handoffs alongside the code. Engineers and their agents can build on shared context, review proposed changes, and carry work between sessions and teammates—with Git as the sharing layer. English 简体中文 Español Português (Brasil) Team memory · A teammate handoff example · Project Hub · Quick start · How it works · Command map One engineer knows why a constraint exists. Another has the debugging history. A coding agent found an important edge case in a session nobody else will read. The next…
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Frequently asked questions
Is Langflow or mex more popular?
Langflow has 156,397 GitHub stars and mex has 1,794. Langflow has the larger community by that measure.
Are Langflow and mex free?
Both are open source. Langflow is licensed under MIT and mex under MIT. Neither carries a licence fee.
What is the difference between Langflow and mex?
Langflow is written in Python and mex 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 mex?
Choose Langflow if you want the larger community (156,397 stars) or its MIT licence terms. Choose mex if its feature set, stack or MIT licence fits better. Both are self-hostable.