Flowise AI: Open Source Alternative to Relevance AI

Flowise AI is an open-source alternative to Langflow, listed in our [Developer Tools](/categories/developer-tools) directory. Flowise AI is a drag-and-drop LLM orchestration tool with 53k+ GitHub stars — a LangChain alternative for building AI workflows visually.

Explore more open-source options in Developer Tools.

Key features

Visual builder

• Drag and drop LangChain components
• Chatflow and Agentflow paradigms
• Real-time preview and testing
• Export flows as JSON

Agent capabilities

• Conversational agents with tools
• Memory and context management
• Custom tool integration
• Multi-step reasoning chains

Embeddable

• Embeddable chatbot widgets
• iFrame and React component
• API endpoints for integration
• Custom styling and branding

Flowise AI vs Langflow

	Flowise AI	Langflow
License	Apache-2.0 (open source)	Proprietary
Models	Bring your own keys / local models	Vendor-locked models
Deployment	Self-hosted or cloud	SaaS only
Privacy	Data stays on your infrastructure	Processed by vendor
Cost	Free software + API usage	Subscription pricing

Choose Flowise AI if you want open-source code, self-hosting options, and full control over your data and deployment.

Choose Langflow if you prefer a managed proprietary product with vendor support and minimal setup.

Browse more open-source alternatives to Langflow, or explore other tools in Developer Tools.

At a glance

License	Apache 2.0
Stack	TypeScript, React
Self-hosted	Yes
Cloud	flowiseai.com
Framework	LangChain

Self-hosting

npm install -g flowise
flowise start

Requires API keys for LLM providers.

FAQ

Is Flowise AI a free alternative to Langflow?

Yes. Flowise AI is open source under Apache-2.0. You can self-host it at no software cost — you only pay for infrastructure or optional managed services.

How does Flowise AI compare to Langflow?

Flowise AI gives you source code access, self-hosting, and data ownership. Langflow is a proprietary product focused on managed convenience. See the comparison table above for a side-by-side breakdown.

Can I self-host Flowise AI?

Yes. Flowise AI supports self-hosted deployment, which is a core reason teams choose it over Langflow. Check the Getting started or Self-hosting section for install commands.

Is Flowise AI suitable for production?

Flowise AI is actively maintained with a strong open-source community. Many teams run it in production as a Developer Tools alternative to Langflow. Review the At a glance table for license and stack details.

What are alternatives to Flowise AI and Langflow?

Browse alternatives to Langflow for more open-source options. Explore the full Developer Tools category for related projects.