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

Etherpad: A modern really-real-time collaborative document editor.

Automate code & data workflows with interactive Elixir notebooks

ONLYOFFICE Docs is a free collaborative online office suite comprising viewers and editors for texts, spreadsheets and presentations, forms and PDF, fully compatible with Office Open XML formats: .docx, .xlsx, .pptx and enabling collaborative editing in real time.

LibRec: A Leading Java Library for Recommender Systems, see

A drop-in javascript spreadsheet library that provides rich features like Excel and Google Sheets

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

SyncedStore CRDT is an easy-to-use library for building live, collaborative applications that sync automatically.

The ultimate list of which programs support Vim-like keybindings natively, or how they can be added with extensions. A collaborative project.

ElectricSQL local-first SQL platform. Develop instantly reactive apps with realtime multi-user and conflict-free offline support. For web and mobile. With active-active replication between Postgres and SQLite.

Typing in Tandem. Decentralized, cross-editor, collaborative text-editing!

🐙 OctoBase is the open-source database behind AFFiNE, local-first, yet collaborative. A light-weight, scalable, data engine written in Rust.

Lightweight collaborative Whiteboard / Sketchboard

📑 Collaborative document editing using Markdown

Production Data Science: a workflow for collaborative data science aimed at production

A collection of multi agent environments based on OpenAI gym.

Collaborative markdown with math

Bonfire - tend to your digital life in community. Customise and host your own online space and control your experience at the most granular level.

Open-Source, collaborative, digital Whiteboard

专注于解决推荐领域与搜索领域的两个核心问题:排序预测(Ranking)和评分预测(Rating). 为相关领域的研发人员提供完整的通用设计与参考实现. 涵盖了70多种排序预测与评分预测算法,是最快最全的Java推荐与搜索引擎.