head to head · open source
Langflow vs ctags
Langflow has 155,679 GitHub stars, 10,228 forks, 1,056 open issues and last shipped today. ctags has 7,296 stars, 671 forks, 269 open issues and last shipped 4 days ago. Langflow leads on adoption by 2,034% (155,679 vs 7,296 stars). Langflow is written in Python under MIT; ctags is written in C under GPL-2.0. Langflow has attracted 7% as many forks as stars, ctags 9%. 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 | ctags | |
|---|---|---|
| GitHub stars | ★ 156K | ★ 7.3K |
| License | MIT | GPL-2.0 |
| Written in | Python | C |
| Last push | 2026-10-15 | 2026-10-11 |
| Forks | ⑂ 10K | ⑂ 671 |
| 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 ctags if
- You want the ctags feature set and don't need the biggest community
- You prefer the GPL-2.0 license terms
- Your stack matches C
- You evaluated both and ctags 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 ctags
Universal Ctags is a maintained implementation of ctags that generates an index, or tag file, of the language objects found in source files, and it is aimed at developers and at the authors of text editors and other tools that need to locate those indexed items across many programming languages.
read the full ctags overview →
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Frequently asked questions
Is Langflow or ctags more popular?
Langflow has 155,679 GitHub stars and ctags has 7,296. Langflow has the larger community by that measure.
Are Langflow and ctags free?
Both are open source. Langflow is licensed under MIT and ctags under GPL-2.0. Neither carries a licence fee.
What is the difference between Langflow and ctags?
Langflow is written in Python and ctags in C. 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 ctags?
Choose Langflow if you want the larger community (155,679 stars) or its MIT licence terms. Choose ctags if its feature set, stack or GPL-2.0 licence fits better. Both are self-hostable.