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Flowise review

Drag-and-drop LangChain builder

4.6
Open Source— users
Open Source
67
ToolHund Score
Solid
Verified
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Our verdict

Flowise is an open-source UI to build LangChain and LlamaIndex flows visually and deploy them as APIs or chat widgets.

ToolHund Score: 67/100 · Best for: Prototyping LLM chains and agents visually on top of LangChain.

Skip it if: Enterprise-grade governance out of the box.

Independently reviewed by ToolHund editors · Last verified 2026-07-26. How we score →

Strengths
  • Open source
  • Self-hostable
  • Developer control
Weaknesses
  • Requires setup
  • Can be complex for beginners
  • Needs careful permissions

Who should choose Flowise?

Prototyping LLM chains and agents visually on top of LangChain. The strongest fit is a buyer who will use Flowise regularly for agents work rather than as an occasional experiment.

Flowise earns its place in a workflow when Visual flow builder, LangChain/LlamaIndex, Chat widget remove a repeated manual step. Its free access makes a real-workflow test possible before committing to a paid plan.

A practical three-step test

  1. STEP 1Run one real agents task from your current workflow in Flowise.
  2. STEP 2Check whether Visual flow builder produces an output you can use without substantial rework.
  3. STEP 3Compare the result and time saved with at least one alternative before choosing a paid plan.

Pricing

Open source · Cloud from $35/mo
Strong for technical teams — no license fees, you pay for infra and model usage

Buying checklist

  • Use-case fit: Prototyping LLM chains and agents visually on top of LangChain.
  • Core capabilities: Visual flow builder, LangChain/LlamaIndex, Chat widget
  • Current listed pricing: Open source · Cloud from $35/mo
  • Reason to skip: Enterprise-grade governance out of the box.

Flowise is most compelling for prototyping llm chains and agents visually on top of langchain. Start with the free option and upgrade only after it proves useful on a real task.

Features

  • Visual flow builder
  • LangChain/LlamaIndex
  • Chat widget
  • Self-host

Flowise vs top alternatives

ToolToolHund ScorePricingFree tierRating
Flowise67/100Open source · Cloud from $35/moYes4.6/5
OpenHands81/100Open source · Cloud from $20/moNo4.7/5
Devin63/100Paid · From $500/moNo4.6/5
OpenAI Codex64/100Included with ChatGPT paid plansNo4.7/5
OpenHands
Open-source platform for autonomous software development agents
Devin
Autonomous AI software engineer from Cognition
OpenAI Codex
AI coding agents for software engineering teams
Claude Code
Agentic coding assistant for terminal and IDE workflows

See all Flowise alternatives →

Flowise FAQ

What is Flowise?

Drag-and-drop LangChain builder Flowise is an open-source UI to build LangChain and LlamaIndex flows visually and deploy them as APIs or chat widgets.

Is Flowise free?

Yes — Flowise offers a free tier or free trial. Current pricing: Open source · Cloud from $35/mo.

How much does Flowise cost?

Flowise pricing: Open source · Cloud from $35/mo. See the ToolHund review for plan details and value analysis.

What is Flowise best for?

Prototyping LLM chains and agents visually on top of LangChain..

What are the best Flowise alternatives?

The closest alternatives in the Agents category are OpenHands, Devin, OpenAI Codex.

How does ToolHund score Flowise?

Flowise scores 67/100 on the ToolHund rubric, which weighs capability, pricing honesty, traction and ecosystem.

Read the ToolHund scoring methodology →