cloudflare/zlib

Cloudflare fork of zlib with massive performance improvements

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Apr 24, 2026

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zlib.net/

README

Cloudflare fork of Zlib

This is a fork of zlib with performance improvements developed for use at Cloudflare.

Deprecated

We're avoiding use of memory-unsafe languages, and don't plan any further development of this library.

We recommend switching to zlib-rs instead.

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