Bun Skills

Bun is an all-in-one toolkit for developing modern JavaScript/TypeScript applications.

Share feedback, bug reports, and feature requests

Learn how to test DOM elements and components using Bun with happy-dom and React Testing Library

Select packages by pattern in a monorepo using the --filter flag

Add packages to your project with Bun's fast package manager

Bun provides fast, native bindings for interacting with S3-compatible object storage services.

Bun's fast, built-in, Jest-compatible test runner with TypeScript support, lifecycle hooks, mocking, and watch mode

Learn how to create and use mock functions, spies, and module mocks in Bun tests

Using TypeScript with Bun, including type definitions and compiler options

Bun's bundler has built-in support for CSS with modern features

Share common dependency versions across multiple packages in a monorepo

Display package metadata from the npm registry

Use Bun's FFI module to efficiently call native libraries from JavaScript

Built-in JSX and TSX support in Bun with configurable transpilation options

Bun provides native bindings for working with SQL databases through a unified Promise-based API that supports PostgreSQL, MySQL, and SQLite.

Install Bun with npm, Homebrew, Docker, or the official script.

Check your installed packages for known security vulnerabilities

Persistently patch node_modules packages in a git-friendly way

How Bun handles package lifecycle scripts securely

Control metadependency versions with npm overrides and Yarn resolutions

Use Bun's fast native implementation of file globbing

Use Bun's built-in support for YAML files through both runtime APIs and bundler integration

Develop complex monorepos with multiple independent packages

Format colors as CSS, ANSI, numbers, hex strings, and more

Execute JavaScript/TypeScript files, package.json scripts, and executable packages with Bun's fast runtime.

Use Bun's built-in support for JSON5 files through both runtime APIs and bundler integration

Parse newline-delimited JSON (JSONL) with Bun's built-in streaming parser

Use Bun's native Redis client with a Promise-based API

Use Bun's shell scripting API to run shell commands from JavaScript

Use Bun's utility functions to work with the runtime

Run JavaScript functions at bundle-time with Bun macros

Install packages with Bun's fast package manager

Use `bun publish` to publish a package to the npm registry

Configure Bun's behavior using its configuration file bunfig.toml

Bun natively implements a high-performance SQLite3 driver.

Learn how Bun's test runner discovers and filters test files in your project

Learn how to use beforeAll, beforeEach, afterEach, and afterAll lifecycle hooks in Bun tests

Learn how to use snapshot testing in Bun to save and compare output between test runs

Migration guide from esbuild to Bun's bundler

Built-in loaders for the Bun bundler and runtime

Universal plugin API for extending Bun's runtime and bundler

How Bun stores and manages packages in its global cache

Create and extract tar archives with Bun's fast native implementation

Use Bun's native APIs for working with HTTP cookies

Bun provides a set of optimized APIs for reading and writing files.

Bun provides a set of utility functions for hashing and verifying passwords with various cryptographically secure algorithms

Use Bun's Secrets API to store and retrieve sensitive credentials securely

Use Bun's streams API to work with binary data without loading it all into memory at once

Use Bun's Workers API to create and communicate with a new JavaScript instance running on a separate thread while sharing I/O resources with the main thread

Speed up JavaScript execution with bytecode caching in Bun's bundler

Reduce bundle sizes with Bun's JavaScript and TypeScript minifier

Debug your Bun code with an interactive debugger using WebKit Inspector Protocol

Parse and render Markdown with Bun's built-in Markdown API, supporting GFM extensions and custom rendering callbacks

Learn how to manipulate time and dates in your Bun tests using setSystemTime and Jest compatibility functions

Build fullstack applications with Bun's integrated dev server that bundles frontend assets and handles API routes

Compile and run C from JavaScript with low overhead

File types and loaders supported by Bun's bundler and runtime

Use Bun's transpiler to transpile JavaScript and TypeScript code

Automatic reloading in Bun with --watch and --hot modes

Learn how to use Bun's built-in code coverage reporting to track test coverage and find untested areas in your codebase