Flowise

AI Agents

FlowiseAI

FreemiumOpen SourceAPI

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Open-source visual AI agent builder: three visual orchestrators (Assistant/Chatflow/Agentflow), drag-and-drop building, self-hosted or cloud

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Our Verdict

Recommended

The open-source way to build agents without code

Flowise occupies a sweet spot: more capable than closed no-code bot builders, more approachable than code-first frameworks. The drag-and-drop canvas genuinely works for RAG chatbots and moderately complex agent flows, and the option to self-host — with roughly 40k GitHub stars behind it — means you are never locked in. Just know its limits: past a certain complexity, visual graphs become their own kind of spaghetti, and serious engineering teams will eventually want LangGraph or Mastra underneath.

Best for

•Non-developers and product teams building agent prototypes
•Embedding RAG chatbots into websites quickly
•Organizations needing self-hosted, data-sovereign LLM apps

Consider alternatives if

•You need code-level control and testing (→ LangGraph, Mastra)
•You want an all-in-one LLMOps platform with app hosting (→ Dify)

Try Flowise

Supported Platforms

Web AppWindowsmacOSLinuxAPI

Available platforms include Web App, Windows, macOS, Linux, and API.

Key Features

Three visual builders: Assistant, Chatflow and Agentflow for rising complexity

Drag-and-drop canvas to compose LLMs, tools, memory and RAG pipelines

Open source and self-hostable, or fully managed Flowise Cloud

Embed chatbots into any site with a script snippet, or call via API/SDK

Works with 100+ LLMs, vector stores and integrations

Human-in-the-loop review steps and multi-agent orchestration

Pricing

free

Self-hosting the open-source version is free; Flowise Cloud Free tier includes 2 flows and 100 predictions/month

paid

Flowise Cloud Starter $35/month, Pro $65/month with more flows, predictions and storage; enterprise plans on request

Use Cases

Teams prototyping agent workflows without writing orchestration code

Embedding a RAG chatbot into a website or internal portal

Agencies delivering custom AI assistants for clients

Self-hosted LLM apps where data must stay on your infrastructure

Pros

Fastest path from idea to working agent for non-coders

Genuinely open source with ~40k GitHub stars and an active community

Three-tier builder design scales from simple bots to multi-agent systems

Self-hosting keeps sensitive data fully under your control

Cons

Visual flows get hard to maintain as complexity grows

Less fine-grained control than code-first frameworks like LangGraph

Cloud free tier is tight: 2 flows and 100 predictions/month

Version upgrades occasionally break existing flows

Latest Update

2026: Flowise's Agentflow builder matures with human-in-the-loop steps and deeper multi-agent orchestration, cementing its place as the leading open-source visual agent platform (~40k GitHub stars)