Langflow
Visual low-code AI builder for agentic and RAG applications
API
Available
Mobile App
No
Users
50k+ GitHub stars
Free tier
Open-source, completely free
Paid plans
Enterprise support available
Integrations
Key Features
- Visual drag-and-drop workflow builder
- Support for all major LLMs and vector databases
- Custom Python components for extensibility
- Built-in API and MCP servers
- Interactive playground for testing
Overview
Langflow is a visual, low-code AI builder that empowers developers to rapidly prototype and build AI applications using agentic workflows and retrieval-augmented generation (RAG).
Key Features
- Visual Flow Builder: Intuitive drag-and-drop interface for creating complex AI workflows
- LLM Agnostic: Support for all major language models and vector stores
- Custom Components: Create unlimited custom Python components
- Built-in APIs: Every workflow becomes a tool with automatic API generation
- Interactive Testing: Playground environment for immediate workflow testing
Use Cases
- Building AI agents and chatbots
- Creating RAG applications for document Q&A
- Prototyping complex AI workflows
- Custom AI application development
- Enterprise AI solution deployment
Pricing
- Open Source: Completely free to use and modify
- Self-Hosted: Deploy on your own infrastructure
- Enterprise Support: Custom pricing for enterprise deployments
Reviews & Comments
Sign in with GitHub to review or comment on this tool.
Reviews are coming soon
To enable: enable Discussions on the GitHub repo, get your repo/category IDs from giscus.app, and set them in the tool page config.
Related Agent Builders
More tools in the same category
n8n
Open-source workflow automation and AI agent builder
Flowise
Open-source visual builder for AI agents and LLM orchestration flows