SkillsAdd

hairyf/skills

unjs

UnJS ecosystem - agnostic JavaScript libraries, tools, and utilities. Use when working with UnJS packages like h3, nitro, ofetch, unstorage, or building universal JavaScript applications.

First seen Jan 31, 2026

Installation

$ npx skills add hairyf/skills --skill unjs
View on skills.sh ↗ GitHub repository ↗

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More details

Agent compatibility

Declared targets from SKILL.md / docs. Unmarked agents are not listed — the skill may still install via the CLI.

Claude Code Not declared
Cursor Not declared
Codex Not declared
GitHub Copilot Not declared
Windsurf Not declared
Gemini CLI Not declared
Cline Not declared
OpenCode Not declared

Repository health

Stars 25
License LICENSE.md
Default branch main
Open issues 0
Status Active

Skill metadata

Parsed from SKILL.md frontmatter.

Version2026.1.31
More metadata
author
hairy
version
2026.1.31
source
Generated from https://github.com/unjs/website, scripts located at https://github.com/hairyf/skills

Package contents

Files included with this skill beyond the listing page.

  • skill md SKILL.md 10,112 B
  • docs SUMMARY.md 196 B

History

  1. First seen on skills.sh
  2. First recorded snapshot · 592 installs

SKILL.md

UnJS (Unified JavaScript) is an ecosystem of high-quality, single-purpose JavaScript libraries and tools designed to work together and independently across any environment. These skills cover the core packages and their practical usage patterns for building universal JavaScript applications.

The skill is based on UnJS website, generated at 2026-01-31.

Core References

HTTP & Server

Topic Description Reference
H3 Framework Minimal HTTP framework for high performance and portability [core-h3](references/core-h3.md)
Nitro Server Universal web server framework that runs anywhere [core-nitro](references/core-nitro.md)
Listhen Elegant HTTP listener for Node.js and edge environments [core-listhen](references/core-listhen.md)

Utilities

Topic Description Reference
Defu Recursive default property assignment [core-defu](references/core-defu.md)
Destr Fast and secure JSON.parse alternative [core-destr](references/core-destr.md)
Ohash Fast hashing library based on murmurhash3 [core-ohash](references/core-ohash.md)
Pathe Cross-platform path utilities (Node.js path replacement) [core-pathe](references/core-pathe.md)
UFO URL utilities for parsing, formatting, and manipulation [core-ufo](references/core-ufo.md)
Scule String case conversion utilities (camelCase, kebab-case, etc.) [core-scule](references/core-scule.md)

Build Tools

Topic Description Reference
Unbuild Unified JavaScript build system [core-unbuild](references/core-unbuild.md)
Mkdist Generate distribution files from source [core-mkdist](references/core-mkdist.md)
Unplugin Unified plugin system for Vite, Rollup, webpack, esbuild, and more [core-unplugin](references/core-unplugin.md)

Features

Storage & Data

Topic Description Reference
Unstorage Async key-value storage API with multiple drivers [features-unstorage](references/features-unstorage.md)

Environment & Runtime

Topic Description Reference
Unenv Convert JavaScript code to be runtime agnostic [features-unenv](references/features-unenv.md)
Std-env Standard environment variables utilities [features-std-env](references/features-std-env.md)

HTTP Client

Topic Description Reference
Ofetch Better fetch API for Node.js, browser, and workers [features-ofetch](references/features-ofetch.md)

Routing

Topic Description Reference
Radix3 Lightweight and fast router based on Radix Tree [features-radix3](references/features-radix3.md)

CLI & Tools

Topic Description Reference
Citty Elegant CLI builder with type-safe commands [features-citty](references/features-citty.md)
Giget Download templates and git repositories [features-giget](references/features-giget.md)

Hooks & Context

Topic Description Reference
Hookable Awaitable hooks system for plugins and extensions [features-hookable](references/features-hookable.md)
Unctx Composables pattern in vanilla JavaScript [features-unctx](references/features-unctx.md)

Crypto & Security

Topic Description Reference
Uncrypto Universal crypto API for Node.js, browser, and edge [features-uncrypto](references/features-uncrypto.md)

Module System

Topic Description Reference
Mlly ECMAScript module utilities for Node.js [features-mlly](references/features-mlly.md)
Unimport Auto-import APIs in modules [features-unimport](references/features-unimport.md)

Type System

Topic Description Reference
Untyped Generate types and markdown from config objects [features-untyped](references/features-untyped.md)

Logging & Console

Topic Description Reference
Consola Elegant console wrapper with multiple reporters [features-consola](references/features-consola.md)

Documentation & Markdown

Topic Description Reference
Automd Automated markdown maintainer [features-automd](references/features-automd.md)
Changelogen Generate beautiful changelogs using conventional commits [features-changelogen](references/features-changelogen.md)
Mdbox Simple markdown utilities [features-mdbox](references/features-mdbox.md)
Undocs Minimal documentation theme and CLI for UnJS projects [features-undocs](references/features-undocs.md)

Configuration

Topic Description Reference
C12 Smart configuration loader [features-c12](references/features-c12.md)
Confbox Compact and high quality YAML, TOML, JSONC and JSON5 parsers [features-confbox](references/features-confbox.md)
Rc9 Read/write config couldn't be easier [features-rc9](references/features-rc9.md)

HTTP & WebSocket

Topic Description Reference
Httpxy Full-featured HTTP and WebSocket proxy for Node.js [features-httpxy](references/features-httpxy.md)
Crossws Cross-platform WebSocket servers for Node.js, Deno, Bun and Cloudflare Workers [features-crossws](references/features-crossws.md)
Cookie-es ESM cookie serializer and deserializer [features-cookie-es](references/features-cookie-es.md)

Image Processing

Topic Description Reference
IPX High performance, secure and easy to use image proxy based on Sharp and libvips [features-ipx](references/features-ipx.md)
Image-meta Detect image type and size using pure JavaScript [features-image-meta](references/features-image-meta.md)
Jimp-compact Lightweight version of Jimp - image processing library [features-jimp-compact](references/features-jimp-compact.md)
Fontaine Automatic font fallback based on font metrics [features-fontaine](references/features-fontaine.md)

Code Generation & AST

Topic Description Reference
Magicast Programmatically modify JavaScript and TypeScript source codes [features-magicast](references/features-magicast.md)
Magic-regexp A compiled-away, type-safe, readable RegExp alternative [features-magic-regexp](references/features-magic-regexp.md)
Knitwork-X Utilities to generate safe JavaScript code (actively maintained fork) [features-knitwork](references/features-knitwork.md)
Jiti Runtime TypeScript and ESM support for Node.js [features-jiti](references/features-jiti.md)

Database & Storage

Topic Description Reference
Db0 Lightweight SQL connector [features-db0](references/features-db0.md)
Mongoz Zero config MongoDB server [features-mongoz](references/features-mongoz.md)

Utilities

Topic Description Reference
Fs-memo Easy persisted memo object for Node.js [features-fs-memo](references/features-fs-memo.md)
Get-port-please Get an available open port [features-get-port-please](references/features-get-port-please.md)
Perfect-debounce Debounce promise-returning and async functions [features-perfect-debounce](references/features-perfect-debounce.md)
Serve-placeholder Smart placeholder for missing assets [features-serve-placeholder](references/features-serve-placeholder.md)
Theme-colors Easily generate color shades for themes [features-theme-colors](references/features-theme-colors.md)

Package Management

Topic Description Reference
Nypm Unified package manager for Node.js [features-nypm](references/features-nypm.md)
Pkg-types Node.js utilities and TypeScript definitions for package.json and tsconfig.json [features-pkg-types](references/features-pkg-types.md)
Bundle-runner Run webpack bundles in Node.js with optional VM sandboxing [features-bundle-runner](references/features-bundle-runner.md)

Web APIs

Topic Description Reference
Unhead Universal document head tag manager [features-unhead](references/features-unhead.md)
Ungh Unlimited access to GitHub API [features-ungh](references/features-ungh.md)
Unpdf Utilities to work with PDFs in Node.js, browser and workers [features-unpdf](references/features-unpdf.md)
Unwasm WebAssembly tools for JavaScript [features-unwasm](references/features-unwasm.md)
Uqr Generate QR Code universally, in any runtime, to ANSI, Unicode or SVG [features-uqr](references/features-uqr.md)
Untun Tunnel your local HTTP(s) server to the world powered by Cloudflare Quick Tunnels [features-untun](references/features-untun.md)
Node-fetch-native A better redistribution of node-fetch [features-node-fetch-native](references/features-node-fetch-native.md)

Build Tools (Additional)

Topic Description Reference
Webpackbar Elegant progress bar and profiler for webpack 3, 4 and 5 [features-webpackbar](references/features-webpackbar.md)
Nanotar Tiny and fast Tar utils for any JavaScript runtime [features-nanotar](references/features-nanotar.md)