zlib

Note

To enable built-in Node.js APIs and polyfills, add the nodejs_compat compatibility flag to your Wrangler configuration file. This also enables nodejs_compat_v2 as long as your compatibility date is 2024-09-23 or later. Learn more about the Node.js compatibility flag and v2.

The node:zlib module provides compression functionality implemented using Gzip, Deflate/Inflate, and Brotli. To access it:

import zlib from 'node:zlib';

The full node:zlib API is documented in the Node.js documentation for node:zlib ↗.