Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.

Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.

Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.

Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database​.

A scalable, distributed, collaborative, document-graph database, for the realtime web

CLI and local web plain text note‑taking, bookmarking, and archiving with linking, tagging, filtering, search, Git versioning & syncing, Pandoc conversion, + more, in a single portable script.

IntentKit is an open-source, self-hosted cloud agent cluster that manages a collaborative team of AI agents for you.

Online collaborative Whiteboard that is simple, free, easy to use and to deploy

Rapid spam filtering system.

Book repository for The Turing Way: a how to guide for reproducible, ethical and collaborative data science

A full-lifecycle Claude Code skill for creating, compiling, reviewing, and polishing academic Beamer LaTeX presentations with quality scoring and pedagogical audits.

An open-source protocol enabling high-performance, local-first, peer-to-peer, end-to-end encrypted collaborative apps.