Langflow
77 · StableVisual builder for AI agents and RAG workflows, with a Python API.
Open source alternatives to Relevance AI
2 open source projects replace Relevance AI, ranked by how safe each is to depend on.
Flowise
ArchivedDrag-and-drop builder for LLM agents and chatflows.
Source-available and unverified licenses
The code for these is public, but the license is not an OSI open source license, or we have not verified it yet. Check the license notes on each project before relying on it.
At a glance
Health and license are separate verdicts: a project can be well maintained and still not be open source.
| Project | Health | License | Stars |
|---|---|---|---|
| Langflow | 77 · Stable | Free to useMIT | 155k |
| Flowise | Archived | Free core, paid extrasApache-2.0 | 55k |
| n8n | 100 · Healthy | Internal use onlySustainable Use License 1.0Relicensed 2022 | 207k |
| Dify | 91 · Healthy | Free with conditionsDify Open Source License | 158k |
More in AI app builders
Relevance AI is a paid AI app builders product. See all open source AI app builders tools, ranked the same way.
Scores last refreshed from GitHub on 9 October 2026. How we score.