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

Collection of small public domain file archivers

Ultra fast file archiver with deduplication and incremental backups

A simple & lightweight desktop-agnostic Qt file archiver

NufxLib and NuLib2, Apple II file archive utilities

encode.ru community archiver

public domain zoo archive tool

Fast, simple, general-purpose archive file format.

Tools to create filesystem images from an fspec filesystem specification.

C decompress tool for mozilla lz4json format

nulib: NuLib NuFile eXchange (NuFX) Archive Utility (for ShrinkIt/BinaryII/NuFX)

An implementation of Canonical Huffman code

(EA Games / EA Sports) RW4 Archive parser, unpacker, decompressor and packer.

Haruhiko Okumura original public C code for his archiver tools

An enhanced and more portable version of `newsyslog` -- a tool for archiving log files

Zoo Extractor/Lister by Rahul Dhesi

Read-only virtual file system

おでかけマルチのアーカイブファイルを作成・展開 / A tool for creating and extracting LZSS-compressed archive files, specifically designed for AQUAPLUS's "Odekake Multi."

Extract and modify Switchball game data

An archive format aiming to replace TAR.