head to head · open source
ECC vs Langflow
ECC has 261,896 GitHub stars, 39,186 forks, 228 open issues and last shipped 2 days ago. Langflow has 154,983 stars, 10,113 forks, 1,056 open issues and last shipped yesterday. ECC leads on adoption by 69% (261,896 vs 154,983 stars). ECC is written in JavaScript under MIT; Langflow is written in Python under MIT. ECC has attracted 15% as many forks as stars, Langflow 7%. 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
| ECC | Langflow | |
|---|---|---|
| GitHub stars | ★ 262K | ★ 155K |
| License | MIT | MIT |
| Written in | JavaScript | Python |
| Last push | 2026-09-17 | 2026-09-18 |
| Forks | ⑂ 39K | ⑂ 10K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ECC if
- You weight community size — 262K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick Langflow if
- You want the Langflow feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and Langflow fits your workflow better
About ECC
ECC is an MIT licensed open source agent harness performance optimization system that gives AI coding agents a coordinated engineering workflow — plan, test, implement, review, verify, remember, improve — for developers working in Claude Code, Codex, OpenCode, Cursor, and other harnesses.
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 →
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Frequently asked questions
Is ECC or Langflow more popular?
ECC has 261,896 GitHub stars and Langflow has 154,983. ECC has the larger community by that measure.
Are ECC and Langflow free?
Both are open source. ECC is licensed under MIT and Langflow under MIT. Neither carries a licence fee.
What is the difference between ECC and Langflow?
ECC is written in JavaScript and Langflow 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, ECC or Langflow?
Choose ECC if you want the larger community (261,896 stars) or its MIT licence terms. Choose Langflow if its feature set, stack or MIT licence fits better. Both are self-hostable.