Artificial Intelligencedocker-ready1-click-deploypermissive-license

LangFlow: the best Open Source alternative to Voiceflow in 2026

LangFlow is a visual editor built on LangChain for designing AI flows with LLMs, agents and vector stores, exportable as an API, an alternative to Voiceflow.

License MIT ~44k stars (estimated)Website GitHub Repository

Technical profile

License: MIT
Category: Artificial Intelligence
Replaces: Voiceflow
Tech stack: PythonReact

Preview

Public image provided by LangFlow on its own website.

Key features

Built on the LangChain ecosystem
Flows exportable as a REST API
Supports multiple LLM and vector providers

LangFlow vs. Voiceflow

Pros

Directly leverages the LangChain integration ecosystem

Things to consider

Can feel more technical than Flowise for non-developers

Quick Docker installation guide

Copy this docker-compose.yml, adjust the example passwords and run docker compose up -d on your server. See the full step-by-step guide →

docker-compose.yml

version: "3.9"
services:
  langflow:
    image: langflowai/langflow:latest
    restart: unless-stopped
    ports:
      - "7860:7860"
    volumes:
      - langflow_data:/app/langflow
volumes:
  langflow_data: