Flowise

Key facts: Flowise is an open-source, drag-and-drop builder for LLM apps: connect language models, vector stores, tools and memory into chatflows and agentflows on a canvas, then deploy them as APIs or embeddable chat widgets. It is built on LangChain and can be self-hosted or used in the cloud.

Plans: Flowise is free and open source for self-hosting; the cloud service has a free tier and paid plans that raise usage and add team features. You also pay your model provider’s rates for the models you call.

Best for: developers who want to prototype LLM apps visually before writing code. Watch out: visual flows get messy at scale — document complex agents and test them with real user queries before shipping.

Pros

• Build LLM apps and agents visually by dragging, dropping and connecting workflows on a canvas.
• Connects language models, vector stores, tools and memory into chatflows and agentflows.
• Deploys as APIs or embeddable chat widgets, and can be self-hosted or used in the cloud.

Watch out for

• Visual flows get messy at scale. Document complex agents and test with real user queries before shipping.
• You also pay your model provider rates for the models you call, on top of any cloud plan.
• It is built for developers. Non-technical users may prefer a no-code chatbot product.

Best for

Best for: developers who want to prototype LLM apps visually before writing code. Who should skip it: anyone who needs a finished chatbot without touching models, APIs or hosting.

Pricing

Flowise is free and open source for self-hosting. The cloud service has a free tier and paid plans that raise usage and add team features. You also pay your model provider rates for the models you call. Check the official pricing page for current cloud limits.

FAQs

What is Flowise? An open-source, drag-and-drop builder for LLM apps, built on LangChain.

What can I build? Chatflows and agentflows from models, vector stores, tools and memory.

How do I deploy a flow? As an API or an embeddable chat widget.

What does it cost? Self-hosting is free apart from your model provider rates. The cloud service has a free tier and paid plans.