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Low-code visual builder for agentic and RAG applications
Pros
- Free and open source ('forever open, free, agnostic')
- Strong RAG + agent tooling
- IBM backing
- Flexible self-hosting
Cons
- DataStax-hosted cloud sunset April 2026 (self-host or alt cloud)
- Real costs from infra/LLM usage
- Managed options in transition
✓ Where it shines / best for
- Developers prototyping RAG and agent flows visually
- Teams wanting an open-source, Python-extensible flow builder
- Local-first experimentation with Langflow Desktop
✕ Not the best fit for
- Non-technical users wanting a fully managed consumer product
- Teams needing a polished SaaS with flat per-seat pricing out of the box
Features
- ✓ API access
- ✓ Free tier
- ✓ No-code
- ✓ Retrieval-augmented generation (RAG)
- ✓ Open source
- ✓ Agent Builder
- ✓ MCP support
- ✓ Multiple model choice
- ✓ Visual Builder
- ✓ On-device / offline
Pricing
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Open Source (Self-hosted) | $0 | one-time | Fully open-source (MIT); free to self-host or run locally with no usage caps |
| Langflow Desktop | $0 | one-time | Free downloadable desktop app for Mac/Windows to build and run flows locally |
| Cloud / Managed | Custom | month | DataStax-hosted Langflow was shut down April 2026; managed/hosted offerings now via IBM watsonx / DataStax — usage-based, contact provider. OSS remains free and 'forever open' |
| Enterprise / Support | Custom | year | Professional services and premier support via IBM/DataStax — contact sales |
Pricing verified from the official source. Prices change often — confirm on the vendor's site before buying.
Specifications
| owner | IBM (via DataStax) |
| license | Open source |
| datastax_cloud | Shut down Apr 9, 2026 |
Sponsored
A full review is being generated for this product and will appear here shortly.