Flowise
Open-source low-code builder for chat assistants and multi-agent systems with RAG, tool calling and human review
Flowise is an open-source platform for building AI agents and agentic systems visually, from simple compositional workflows to autonomous agents. Developers wire up building blocks on a canvas and expose the result through an API or an embedded chat widget.
Key features:
- Build multi-agent systems with orchestrated workflows in Agentflow.
- Build chat assistants with tool calling and RAG over various data sources in Chatflow.
- Add human-in-the-loop review of agent tasks.
- Inspect full execution traces, with Prometheus and OpenTelemetry support.
- Integrate through APIs, TypeScript and Python SDKs or an embedded chat widget.
- Choose from more than 100 LLMs, embedding models and vector databases.
Flowise is open source under Apache 2.0, installs with npm and runs locally with one command, and scales horizontally with queues and workers on-premises or in the cloud. Flowise Cloud has a free plan with 2 flows and 100 predictions a month; Starter is $35/month (first month free) and Pro is $65/month.