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1---
2link: https://jsr.io
3tags:
4 - JavaScript
5 - TypeScript
6---
7> The open-source package registry for modern JavaScript and TypeScript
8
9Focused on native TypeScript support for many different runtimes.
10## Why JSR?
11
12> Made for **TypeScript & ESM**
13>
14> 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.
15>
16> JSR packages are distributed as web-standard ECMAScript modules.
17
18## Works with any runtime
19
20> JSR modules can be used in Node.js, Deno, Bun, Cloudflare Workers, and more.
21
22More details on the [Why JSR?](https://jsr.io/docs/why), which specifically mentions “There are more JavaScript runtimes than just Node.js and browsers” — see [[JavaScript Runtimes]]