head to head · open source
Langflow vs websocket-devtools
Langflow has 155,877 GitHub stars, 10,238 forks, 1,056 open issues and last shipped yesterday. websocket-devtools has 1,198 stars, 59 forks, 19 open issues and last shipped 24 days ago. Langflow leads on adoption by 12,911% (155,877 vs 1,198 stars). Langflow is written in Python under MIT; websocket-devtools is written in JavaScript under MIT. Langflow has attracted 7% as many forks as stars, websocket-devtools 5%. 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 | websocket-devtools | |
|---|---|---|
| GitHub stars | ★ 156K | ★ 1.2K |
| License | MIT | MIT |
| Written in | Python | JavaScript |
| Last push | 2026-10-21 | 2026-09-28 |
| Forks | ⑂ 10K | ⑂ 59 |
| 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 websocket-devtools if
- You want the websocket-devtools feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and websocket-devtools 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 websocket-devtools
WebSocket DevTools Complete WebSocket Traffic Control with advanced proxy, simulation, and blocking capabilities [![][version shield]][version link] [![][license shield]][license link] [![][privacy shield]][privacy link] [![][homepage shield]][homepage link] [![][chrome shield]][chrome link] [![][edge shield]][edge link] [![][deepwiki shield]][deepwiki link] [![][youtube shield]][youtube link] [![][stars shield]][stars link] English 简体中文 繁體中文 日本語 🚀 Installation Chrome Web Store 1. Visit Chrome Web Store 2. Click "Add to Chrome" and confirm installation 3. Open DevTools (F12) → "WebSocket DevTools" tab Microsoft…
read the full websocket-devtools overview →
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Frequently asked questions
Is Langflow or websocket-devtools more popular?
Langflow has 155,877 GitHub stars and websocket-devtools has 1,198. Langflow has the larger community by that measure.
Are Langflow and websocket-devtools free?
Both are open source. Langflow is licensed under MIT and websocket-devtools under MIT. Neither carries a licence fee.
What is the difference between Langflow and websocket-devtools?
Langflow is written in Python and websocket-devtools in JavaScript. 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 websocket-devtools?
Choose Langflow if you want the larger community (155,877 stars) or its MIT licence terms. Choose websocket-devtools if its feature set, stack or MIT licence fits better. Both are self-hostable.