Bun

Stable

Bun is a fast, all-in-one JavaScript runtime, bundler, test runner, and package manager - designed as a drop-in alternative to Node.js and npm/yarn/pnpm.

Latest Version: 1.2
Release Date: July 1, 2026
Maintainer: Oven (Bun team)
Type: JavaScript Runtime & Toolkit

Quick Links

Official Website Documentation GitHub Repository

Installation

curl -fsSL https://bun.sh/install | bash

What's New in 1.2

New Features

Full-text search support in the built-in `bun:sqlite` driver
Expanded `node:fs`/`node:crypto` compatibility

Improvements

Faster `bun install` for monorepos with many workspace packages
Better error traces that map back to original TypeScript source

Performance

Lower memory usage for long-running server processes
Faster cold start for `bun run` scripts

Bug Fixes

Fixed a `bun test` watch-mode race condition
Corrected `Bun.serve()` header handling for streamed responses

Bun 1.2 expands Node.js API compatibility (including more of `node:fs` and `node:crypto`), adds full-text search to its built-in SQLite driver, and continues improving install-time performance for large dependency trees.

Bun