head to head · open source
Langflow vs OpenDoor
Langflow has 155,275 GitHub stars, 10,149 forks, 1,056 open issues and last shipped yesterday. OpenDoor has 1,008 stars, 187 forks, 4 open issues and last shipped 6 days ago. Langflow leads on adoption by 15,304% (155,275 vs 1,008 stars). Langflow is written in Python under MIT; OpenDoor is written in Python under GPL-3.0. Langflow has attracted 7% as many forks as stars, OpenDoor 19%. 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 | OpenDoor | |
|---|---|---|
| GitHub stars | ★ 155K | ★ 1.0K |
| License | MIT | GPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-09-26 | 2026-09-21 |
| Forks | ⑂ 10K | ⑂ 187 |
| 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 OpenDoor if
- You want the OpenDoor feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Python
- You evaluated both and OpenDoor 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 OpenDoor
OpenDoor is an open source, GPL 3.0 OWASP command line reconnaissance platform, written in Python, that automates directory discovery, subdomain enumeration, fingerprinting and WAF detection for security researchers, penetration testers, bug bounty hunters, DevSecOps engineers and developers working on systems they own or are explicitly authorized to test.
read the full OpenDoor overview →
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Frequently asked questions
Is Langflow or OpenDoor more popular?
Langflow has 155,275 GitHub stars and OpenDoor has 1,008. Langflow has the larger community by that measure.
Are Langflow and OpenDoor free?
Both are open source. Langflow is licensed under MIT and OpenDoor under GPL-3.0. Neither carries a licence fee.
What is the difference between Langflow and OpenDoor?
Langflow is written in Python and OpenDoor in Python. 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 OpenDoor?
Choose Langflow if you want the larger community (155,275 stars) or its MIT licence terms. Choose OpenDoor if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.