Langflow
77 · StableVisual builder for AI agents and RAG workflows, with a Python API.
Directory / AI app builders
Open source AI app builders
Platforms for building LLM chatbots, agents and RAG workflows. Ranked by health score.
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.
Dify
89 · HealthyPlatform for building LLM apps, agents and RAG pipelines with a visual workflow editor.
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 | MIT | 156k |
| Flowise | Archived | Open source (permissive) | 55k |
| Dify | 89 · Healthy | Custom license, not open source | 158k |
Paid products these replace
Alternatives to Microsoft Copilot StudioAlternatives to Voiceflow
Scores refresh nightly from GitHub. How we score.