Zed

Zed is a San Francisco-based code editor company building a high-performance, multiplayer code editor in Rust that aims to be significantly faster than Electron-based editors like VS Code while offering built-in real-time collaboration and AI assistance. Zed's Rust implementation enables near-instant startup, smooth scrolling at 120fps, and no performance degradation in large codebases where VS Code slows down. The editor's real-time collaboration feature allows multiple developers to edit the same file simultaneously with conflict-free synchronization — similar to Google Docs for code. Zed integrates AI assistance through a built-in language model interface that can explain code, generate completions, and refactor functions without switching to a separate tool. The company was founded by the creators of Atom (the open-source editor acquired by GitHub) and Tree-sitter (a parser generator). Zed raised over $26M from investors including Andreessen Horowitz and launched as an open-source project in 2024, driving rapid adoption among performance-conscious developers. It competes with VS Code, Neovim, and JetBrains IDEs.