Packages
Featured
- @kysely/kyselyA type-safe TypeScript SQL query builder
- @es-toolkit/es-toolkitA modern JavaScript utility library that's 2-3 times faster and up to 97% smaller—a major upgrade to lodash.
- @zod/zodTypeScript-first schema declaration and validation library with static type inference
- @punkpeye/fastmcpA TypeScript framework for building MCP (Model Context Protocol) servers.
- @rabbit-company/webHigh-performance web framework
- @campfire/coreLightweight library that works with vanilla DOM elements and provides fine-grained reactivity + utils for building websites.
- @am/neuralnetworkA simple neural network library for JavaScript and TypeScript.
- @sigmasd/jsr-mcpA Model Context Protocol (MCP) server that provides access to JSR (JavaScript Registry) module documentation.
- @iuioiua/redisFast, lightweight Redis client built upon the Web Streams API.
- @img/pngA image encoder/decoder for the PNG format
Recently updated
- @croutonian/with-openapi0.6.0
- @kiri23/ontology-client0.1.2
- @azcodr/azcodrEnterprise Architecture & Agentic Engineering Starter Template2.8.0
- @fathym/eacThis library contains the core types for Fathym's Everything as Code (EaC) framework.0.3.466-round-10
- @defai-digital/ax-code-sdkSDK for ax-code https://github.com/defai-digital/ax-code2.6.26
- @fathym/eacThis library contains the core types for Fathym's Everything as Code (EaC) framework.0.3.465-round-10
- @o-industrial/commonThe Open Industrial common library0.1.1638-round-10
- @fathym/eacThis library contains the core types for Fathym's Everything as Code (EaC) framework.0.3.464-round-10
- @o-industrial/commonThe Open Industrial common library0.1.1637-round-10
- @fathym/eacThis library contains the core types for Fathym's Everything as Code (EaC) framework.0.3.463-round-10
New to JSR
- @antimeme/verbs
- @kiri23/ontology-client
- @apexraysec/injprobe
- @apexraysec/aptest
- @mailchannels/mailchannels-sdkOfficial MailChannels Email API SDK for Deno and TypeScript, with a Nodemailer transport and a local simulator. Re-exports the mailchannels-sdk npm package.
- @kasperrt/konamiA tiny, dependency-free keyboard sequence listener with a callback-first API.
- @kasperrt/smolterA tiny typed data router for React and Preact, with loaders, actions, fetchers, and SSR.
- @wormblossom/macromania-cite
- @baua/cli
- @wake-protocol/server
Why JSR?
Made for TypeScript & ESM
JSR is designed for TypeScript. You publish TypeScript source, and JSR handles generating API docs, .d.ts files, and transpiling your code for cross-runtime compatibility.
JSR packages are distributed as web-standard ECMAScript modules.
Builds on npm
JSR isn't a replacement for the npm registry; it's a superset of npm.
JSR modules can be used with any JavaScript package manager, and in any project with a node_modules folder.
Works with any runtime
JSR modules can be used in Node.js, Deno, Bun, Cloudflare Workers, and more.
Module authors can count on great editor support from strongly typed modules, without the need to transpile and distribute typings manually.
