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
- @sabilmurti/amneshiaDeterministic, Git-Native Knowledge Graph & Truth Maintenance Engine for AI Agents.3.2.1
- @justinmchase/uffda0.9.1
- @optique/testingTesting support for Optique command-line interfaces1.4.0-dev.2723+56e838af
- @optique/discoverRuntime-aware command discovery for Optique CLI programs1.4.0-dev.2723+56e838af
- @optique/manMan page generator for Optique CLI parsers1.4.0-dev.2723+56e838af
- @optique/inquirerInteractive prompt support for Optique via Inquirer.js1.4.0-dev.2723+56e838af
- @optique/clackInteractive prompt support for Optique via Clack1.4.0-dev.2723+56e838af
- @optique/gitGit value parsers for Optique1.4.0-dev.2723+56e838af
- @optique/runProcess-integrated CLI parser for Node.js, Bun, and Deno1.4.0-dev.2723+56e838af
- @optique/standard-schemaStandard Schema value parsers for Optique1.4.0-dev.2723+56e838af
New to JSR
- @fbritoferreira/strapi-admin-apiStrapi 5 plugin that exposes full CRUD REST endpoints for admin users and admin tokens — user management, password resets, and token lifecycle, all secured behind admin JWT and RBAC.
- @sabakernel/optical-layer-transitionWebGL2-powered optical layer transition renderer for progressive image updates.
- @gigatypes/shared-es2018-asynciterablePart of gigatypes shared by its lib packages, which bring it along: TypeScript's es2018.asynciterable lib with no any in a value position.
- @gigatypes/webworkerTypeScript's webworker lib with no any in a value position: outside data arrives as unknown or JSONValue.
- @gigatypes/scripthostTypeScript's scripthost lib with no any in a value position: outside data arrives as unknown or JSONValue.
- @gigatypes/esnextTypeScript's esnext lib with no any in a value position: outside data arrives as unknown or JSONValue.
- @gigatypes/es6TypeScript's es6 lib with no any in a value position: outside data arrives as unknown or JSONValue.
- @gigatypes/es5TypeScript's es5 lib with no any in a value position: outside data arrives as unknown or JSONValue.
- @gigatypes/es2025TypeScript's es2025 lib with no any in a value position: outside data arrives as unknown or JSONValue.
- @gigatypes/es2024TypeScript's es2024 lib with no any in a value position: outside data arrives as unknown or JSONValue.
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.