Langflow
App in the BluixApps catalog
What it is
Langflow is a visual builder for LangChain applications — drag-and-drop nodes onto a canvas to assemble chatbots, agents, RAG pipelines, then export as Python code or run as an API. Built by Logspace (now Datastax/IBM), Langflow targets engineers who want LangChain visualization for design + prototyping before going to code.
The key differentiator vs Flowise: Langflow's flows export to runnable Python, making it a "design IDE" rather than a runtime-only platform.
What it's for
- LangChain prototyping — design flows visually, export to Python for production
- Chatbot design — wire LLM + memory + tools + RAG visually
- AI app demos — show stakeholders a working flow before writing code
- Teaching LangChain — visual concepts before going to programmatic
- Multi-step agent design — see the chain structure before debugging code
Who it's for
- Python developers prototyping LangChain apps before committing to code structure
- AI engineers designing complex chains visually for clearer team review
- Educators teaching LangChain concepts with a visual aid
- Solo developers shipping AI apps where visual design accelerates iteration
- Engineering teams doing design review of LangChain workflows before merge
Why teams pick Langflow over alternatives
- Export to Python — flows become real LangChain code, not locked-in runtime
- LangChain-native — every node maps to a LangChain primitive
- MIT license — fork freely for commercial use
- Strong backing — Datastax/IBM ensures sustained development
- Active marketplace — pre-built flows for common patterns
- API mode — run flows as REST endpoints in production
Integrations
- LLM providers — OpenAI, Anthropic, Ollama, HuggingFace, Cohere, custom
- Vector stores — Qdrant, Chroma, Weaviate, Pinecone, pgvector
- Document loaders — PDF, web scrapers, GitHub, S3, custom
- Embeddings — OpenAI, Cohere, HuggingFace, local models
- Agent tools — web search, calculator, custom HTTP, code execution
- Memory backends — buffer, conversation summary, vector-backed
- API endpoints — flows expose
/run+/chatREST endpoints
Notable users & community
- 40k+ GitHub stars
- Active Discord community
- Backed by Datastax (now IBM subsidiary)
- Featured in production LangChain stack articles
- Weekly releases with strong roadmap visibility
Tips & operations
- Export flows to Python — production deployments should run exported code, not Langflow runtime
- Persist
/data— flows + credentials + history live here; mount volume from day one - Switch to Postgres — default SQLite breaks under multi-user concurrent writes
- API key per flow — distinct keys per consumer; revoke individually
- Watch token costs — visual iteration can run up OpenAI bills fast; use Ollama for dev
- Component registry — Langflow loads all components at startup; long startup time = normal
What we ship in BluixApps
- Docker compose: Langflow + Postgres + Redis
- Pinned
langflowai/langflow:latest(release-tagged) - Admin user with random password on first boot
- HTTPS via Let's Encrypt
- Auto-detection of Ollama / Qdrant on same VPS
- Persistent volume for flows + components
- Backup hook covers Postgres + flow exports
Get this app — pick a BluixApps plan
Same catalog. Scaling tenant isolation, white-label and support tier.
| Tier | Tenants | Catalog | Support | White-label | Monthly | |
|---|---|---|---|---|---|---|
| Stacks | 1 | 19 curated stacks | Standard | — | $19/mo | DetailDeploy |
| Starter | 10 | Full catalog | Standard | +$15–25/mo | $49/mo | DetailDeploy |
| Pro | 25 | Full catalog | Priority bugfix | +$15–25/mo | $149/mo | DetailDeploy |
| Growth | 100 | Full catalog | Priority bugfix | +$15–25/mo | $349/mo | DetailDeploy |
| Scale | 500 | Full catalog | 7-day window | +$15–25/mo | $799/mo | DetailDeploy |
| Enterprise | Unlimited | Full catalog | Priority 7-day | Bundled | $1,499/mo | DetailDeploy |
