Flowise Review 2026

Drag-and-drop UI to build LLM workflows

⭐ 55k+ stars 📜 Apache-2.0 🏷️ agent

Overview

Drag-and-drop UI to build LLM workflows

✓ Drag-and-drop LangChain/LlamaIndex workflow builder — no Python coding required
✓ 300+ built-in nodes covering LLMs, vector stores, document loaders, and tools
✓ Deployable as a standalone API — export workflows as REST endpoints
✓ Active development with frequent updates and new node additions

✗ Visual workflows become hard to maintain at scale — not ideal for production systems with complex branching logic
✗ Feature parity with LangChain's Python API lags slightly
✗ Self-hosted requires Node.js setup; Docker deployment is more reliable
✗ Complex custom logic still requires dropping into code nodes

• {'icon': '🎯', 'title': '300+ Pre-Built Node Library', 'desc': 'Compose complex LLM workflows using 300+ drag-and-drop nodes including LangChain/LlamaIndex integrations, vector databases, document loaders, and external tool connectors without writing code.'}
• {'icon': '⚙️', 'title': 'Export Workflows as REST APIs', 'desc': 'Deploy completed workflows instantly as standalone REST endpoints, enabling production-ready API servers without additional backend development or infrastructure setup.'}
• {'icon': '🔗', 'title': 'LangChain & LlamaIndex Native', 'desc': 'Built-in support for LangChain and LlamaIndex frameworks, allowing you to leverage their full ecosystem of agents, chains, and indexing strategies visually.'}
• {'icon': '📊', 'title': 'Multi-Provider LLM Support', 'desc': 'Connect to OpenAI, Claude, local models, and other LLM providers through a unified node interface, enabling easy model switching and A/B testing workflows.'}
• {'icon': '📁', 'title': 'Document Processing Pipeline', 'desc': 'Load PDFs, CSVs, and text files directly into workflows with built-in document loaders, automatically chunking and vectorizing content for RAG applications.'}

Flowise is a strong open-source agent tool with 55k+ GitHub stars. Its large community and active development make it a dependable choice in 2026.

Flowise is a agent tool with 55k+ GitHub stars. Drag-and-drop UI to build LLM workflows

Flowise is Apache-2.0. Check the official website for current pricing.