Lepton is a tool and file format for losslessly compressing JPEGs by an average of 22%.

Optimized Go Compression Packages

Universal Extractor 2 is a tool to extract files from any type of archive or installer.

LZ4 compression for Java

Tool suite for Texture and 3D Model Compression, Optimization and Analysis using CPUs, GPUs and APUs

High performance (de)compression in an 8kB package

Brotli compressor and decompressor written in rust that optionally avoids the stdlib

🔒 Secure localStorage data with high level of encryption and data compression

Pure golang package for reading and writing xz-compressed files

The Minimal LZMA (minlzma) project aims to provide a minimalistic, cross-platform, highly commented, standards-compliant C library (minlzlib) for decompressing LZMA2-encapsulated compressed data in LZMA format within an XZ container, as can be generated with Python 3.6, 7-zip, and xzutils

A collection of useful utility functions

7zip in python3 with ZStandard, PPMd, LZMA2, LZMA1, Delta, BCJ, BZip2, and Deflate compressions, and AES encryption.

⚡ A compression library that implements many compression algorithms such as LZ4, Zstd, LZMA, Snappy, Brotli, GZip, and Deflate. It helps you to improve performance by reducing Memory Usage and Network Traffic for caching.

A library for some loosely related Microsoft compression formats, CAB, CHM, HLP, LIT, KWAJ and SZDD.

mini_gzip - embeddable, minimal, in-memory GZIP API

Pure OCaml implementation of Zlib.

⚗️ Lightweight HTTP extensions for Java

zstd-decoder in pure rust

Truly parallel gzip decompression

Python package to compress numerical series & numpy arrays into strings

Full C# port of Brotli compression algorithm

Tiny inflate library (inflate, gzip, zlib)

HTTP request decompression middleware for ASP.NET Core

extract random-positioned data from gzip files with no penalty, including gzip tailing like with 'tail -f' !

A C++ compression program based on Huffman's lossless compression algorithm and decoder.

Swift wrapper around ZSTD compression lib

A very simple implementation of fractal image compression

bzip2 for Ruby

FLAC decoder library in Java.