What is Langflow?
Langflow is an open-source, Python-based visual builder for agents and RAG workflows, backed by DataStax/IBM, with deployment as APIs and MCP servers.
Best for: AI engineers, Developers.
Key features
- Visual flow editor
- Python components
- MCP server support
- API deployment
- Desktop app
Pros and cons
Pros
- Open-source
- Customisable with Python
Cons
- Can be unstable across versions
- Production hosting needs DevOps work
Langflow pricing
| Pricing model | Open source |
|---|---|
| Starting price | Free |
| Platforms | Web, Mac, Windows |
| Launched | 2023 |
Prices change often. Check the Langflow website for current plans.
Our verdict
Langflow scores 7.6/10 in our review. Its biggest strength: open-source. The main drawback: can be unstable across versions. If it isn't the right fit, Zapier is the closest alternative.
Frequently asked questions
What is Langflow?
Langflow is an open-source, Python-based visual builder for agents and RAG workflows, backed by DataStax/IBM, with deployment as APIs and MCP servers.
Is Langflow free?
Yes. Langflow is open source and free to use.
What are the best Langflow alternatives?
Popular alternatives include Zapier, Claude Code, Upwork, n8n.
Who is Langflow best for?
Langflow is best for ai engineers, developers.