Ace

It is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter. It efficiently leverages every CPU core and your GPU to start instantly, load files in a blink, and respond to your keystrokes on the next display refresh.

An open source collaborative code and text editor. Share documents and see changes occur in real-time.

Tandem is a decentralized, collaborative text-editing solution. Tandem works with native text editors, works across different editors, and uses peer-to-peer connections to facilitate communication. Tandem exists as a set of plugins for native text editors. We currently support Sublime Text 3 and Neovim. We also unofficially support Vim.

Graphite enables convenient, secure, decentralized, and user-owned file creation, file storage, communication, and sharing.

It is an efficient and minimal open-source collaborative text editor based on the operational transformation algorithm. It lets users collaborate in real-time while writing code in their browser. It is completely self-hosted and fits in a tiny Docker image, no database required.

It tries to bridge the gap between editing explicit, unambiguous content like Markdown or XML, and classical WYSIWYG editors.

Conclave is a peer-to-peer, real-time, collaborative text editor built from scratch in JavaScript.