Zed is a fast, open-source code editor written in Rust, with multiplayer editing and AI built in.. The tools below share its categories (Developer Tools, Open Source). Most are still pre-launch, so you are comparing direction and early access rather than finished feature lists.
Biome
LaunchedA fast formatter and linter for JavaScript, TypeScript, JSON and CSS in one tool.
Bun
LaunchedA fast JavaScript runtime, bundler, test runner and package manager in one binary.
Copperhead
LaunchedAn open-source AI engineering platform for designing, verifying and shipping circuit boards.
Drop
LaunchedA rootless Linux sandbox for isolating coding agents and third-party programs.
Ledge
LaunchedMarkdown notes that run shell commands, code, SQL and AI prompts in place.
rhun
LaunchedA small, fast, open-source code editor for Windows, Linux and macOS, written in assembly.
Vite
LaunchedA frontend build tool with a fast dev server and optimised production builds.
Woxi
LaunchedAn open-source Wolfram Language interpreter written in Rust, with a browser playground.
Jev Ultrafast
Betai. am. speed.
aclif
LaunchedA framework for building command-line tools that AI agents use to reach SaaS platforms.
Astro
LaunchedA web framework for content-driven sites that ships zero JavaScript by default.
boxes.dev
LaunchedCloud computers for coding agents such as Claude Code and Codex, managed from desktop, phone or terminal.
Know a tool that belongs here? Add it to the radar.