Microsoft 365 Copilot: The Best Open-Source Alternatives

Microsoft 365 Copilot supports knowledge work in Microsoft apps with AI chat, text drafts, and search across work content. Copilot Notebooks bring together chats, files, meeting notes, and project materials so you can analyze and summarize them.

The directory lists Microsoft 365 Copilot in the «AI Chat Interfaces» category.

Here you can find open-source alternatives, and separately marked source-available alternatives, to «Microsoft 365 Copilot» (external link) in the category «AI Chat Interfaces».

In the Category «AI Chat Interfaces»

AnythingLLM

AnythingLLM lets you ask questions about your own documents and work with AI agents. Teams share workspaces and control access through roles.

  • AI Chat

LibreChat

LibreChat brings different language models together in one chat interface. Custom assistants search documents and use connected tools.

  • AI Chat

Open WebUI

Open WebUI connects local and external language models in a self-hostable chat interface with document knowledge and tools.

  • AI Chat