Open Source LLM Application Frameworks using JavaScript

A curated collection of the best open source frameworks specifically for building applications using Large Language Models. using JavaScript.

Visual builder for AI agents and RAG pipelines

Build, deploy, and iterate on AI agents, RAG applications, and MCP servers using a drag-and-drop visual interface backed by Python.

Open Source Alternative to:

Build AI copilots for your product in hours, not months

Integrate production-ready AI copilots into any product quickly and easily with CopilotKit's open-source platform.

Open Source Alternative to:

Visual builder for AI agents and RAG pipelines

Build, deploy, and iterate on AI agents, RAG applications, and MCP servers using a drag-and-drop visual interface backed by Python.

Open Source Alternative to:

Build AI copilots for your product in hours, not months

Integrate production-ready AI copilots into any product quickly and easily with CopilotKit's open-source platform.

Open Source Alternative to: