7-Zip with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard

A new p7zip fork with additional codecs and improvements (forked from https://sourceforge.net/projects/sevenzip/ AND https://sourceforge.net/projects/p7zip/).

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

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

Archive library for browsers

UnifiedArchive - an archive manager with unified interface for different formats (bundled with cli utility). Supports all formats with basic operations (reading, extracting and creation) and popular formats specific features (compression level, password-protection, comment)

Python bindings for the LZMA library

Golang library for dealing with 7-zip archives

PLzmaSDK is (Portable, Patched, Package, cross-P-latform) Lzma SDK.

Go middleware to compress HTTP responses with Gzip, Deflate, Brotli, Zstandard, XZ/LZMA2, LZ4, and more..

A native Go 7z archive reader.

cat on steroids

(Unofficial) Git mirror of 7zip & LZMA SDK release v25.01, https://www.7-zip.org/sdk.html . some changes for HDiffPatch.

Crystal bindings to the xz (lzma) compression library

A defensive and fast decompression library in pure Common Lisp

PHP Extension providing xz (LZMA2) compression/decompression via PHP streams. PHP7+

Fast LZMA2 Wrapper for .NET

LZMA/LZMA2 for Delphi

Use of different encryption, hashing and compression algorithm in Java.

The lib7zres project is a library that reads 7z compressed files as resource packages.