head to head · open source
Langflow vs puppeteer
Langflow has 154,983 GitHub stars, 10,113 forks, 1,056 open issues and last shipped yesterday. puppeteer has 95,590 stars, 9,576 forks, 259 open issues and last shipped yesterday. Langflow leads on adoption by 62% (154,983 vs 95,590 stars). Langflow is written in Python under MIT; puppeteer is written in TypeScript under Apache-2.0. Langflow has attracted 7% as many forks as stars, puppeteer 10%. 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 | puppeteer | |
|---|---|---|
| GitHub stars | ★ 155K | ★ 96K |
| License | MIT | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 10K | ⑂ 9.6K |
| 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 puppeteer if
- You want the puppeteer feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and puppeteer 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 puppeteer
Puppeteer is an Apache 2.0 JavaScript and TypeScript library that provides a high level API for driving Chrome and Firefox over the DevTools Protocol or WebDriver BiDi, written for developers who automate browsers from Node.js.
read the full puppeteer overview →
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Frequently asked questions
Is Langflow or puppeteer more popular?
Langflow has 154,983 GitHub stars and puppeteer has 95,590. Langflow has the larger community by that measure.
Are Langflow and puppeteer free?
Both are open source. Langflow is licensed under MIT and puppeteer under Apache-2.0. Neither carries a licence fee.
What is the difference between Langflow and puppeteer?
Langflow is written in Python and puppeteer 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 puppeteer?
Choose Langflow if you want the larger community (154,983 stars) or its MIT licence terms. Choose puppeteer if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.