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

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

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

High performance (de)compression in an 8kB package

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

Small inflate/deflate implementation in ~300 LoC of ANSI C

mini_gzip - embeddable, minimal, in-memory GZIP API

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

zstd-decoder in pure rust

Pure OCaml implementation of Zlib.

Truly parallel gzip decompression

⚗️ Lightweight HTTP extensions for Java 11

Python package to compress numerical series & numpy arrays into strings

7zip implementation in pure python3 with various compression methods: LZMA2, LZMA1, Delta, BCJ, BZip2, Deflate, and AES encryption.

EasyCompressor is an open-source compression abstraction library that supports and implements many compression algorithms such as Zstd, LZMA, LZ4, Snappy, Brotli, GZip and Deflate. It is very useful for using along with distributed caching or storing files in database.

Full C# port of Brotli compression algorithm

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

bzip2 for Ruby

Swift wrapper around ZSTD compression lib

Transparent HTTP request decompression middleware for ASP.NET Core 3

FLAC decoder library in Java.

Tiny inflate library (inflate, gzip, zlib)

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

A very simple implementation of fractal image compression