UnJS ecosystem - agnostic JavaScript libraries, tools, and utilities. Use when working with UnJS packages like h3, nitro, ofetch, unstorage, or building…
Comprehensive ecosystem of single-purpose JavaScript libraries for universal, runtime-agnostic development. Covers 50+ packages across HTTP frameworks (H3, Nitro), utilities (path, URL, hashing), storage, CLI tools, and build systems Supports multiple runtimes: Node.js, browsers, edge environments, Deno, Bun, and Cloudflare Workers Includes specialized tools for image processing, WebAssembly, PDF handling, QR codes, crypto, and database connectivity Designed for composability: libraries work independently or together to build universal JavaScript applications 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 Nitro Server Universal web server framework that runs anywhere core-nitro Listhen Elegant HTTP listener for Node.js and edge environments core-listhen Utilities
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