Open Source Mac File Compression Software
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File Compression Software for Mac
View 13 business solutionsBrowse free open source File Compression software and projects for Mac below. Use the toggles on the left to filter open source File Compression software by OS, license, language, programming language, and project status.
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Info-ZIP project
Info-ZIP portable compression/archiver utilities
Info-ZIP portable compression/archiver utilities (Zip, UnZip, WiZ, etc.) -
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LAME (Lame Aint an MP3 Encoder)
A high quality MP3 encoder
LAME is an educational tool to be used for learning about MP3 encoding. The goal of the LAME project is to improve the psycho acoustics, quality and speed of MP3 encoding. Note: we provide source code only! -
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PeaZip
Free Zip software and Rar extractor
PeaZip is a free archiver tool. The application provides an unified, natively portable, cross-platform file manager and archive manager GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX. Create: 7Z, ARC, Brotl, BZip, GZip, PEA, TAR, WIM, XZ, ZPAQ, ZIP, Zstandard files and more Open and extract 200+ file types: ACE, CAB, DEB, ISO, RAR, ZIPX and more Features of PeaZip includes extract, create and convert multiple archives at once, create self-extracting archives (sfx), split files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hashes, export task definition as command line script. -
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OptiPNG
Advanced PNG optimization program
OptiPNG is a PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections. -
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FLAC is a free lossless compressed audio format which supports streaming and archival. The FLAC project maintains the format and provides a reference encoder/decoder and input plugins for several popular audio players.
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WinRAR
Compress, Encrypt, Package and Backup with only one utility
WinRAR is a powerful file archiver and compression tool that supports multiple file formats, including RAR and ZIP. It is widely used for compressing large files into smaller, more manageable sizes and decompressing files into their original format. WinRAR offers advanced features for both personal and professional use, such as file encryption, password protection, and splitting large files into smaller parts for easier storage or transfer. Its intuitive interface makes it easy for users to compress, encrypt, and share files quickly and efficiently. -
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Brotli
Brotli compression format
Version 1.0.9 contains a fix to "integer overflow" problem. This happens when "one-shot" decoding API is used (or input chunk for streaming API is not limited), input size (chunk size) is larger than 2GiB, and input contains uncompressed blocks. After the overflow happens, memcpy is invoked with a gigantic num value, that will likely cause the crash. Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression. The specification of the Brotli Compressed Data Format is defined in RFC 7932. Brotli is open-sourced under the MIT License. You can download and install brotli using the vcpkg dependency manager. -
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Dinky
Dinky makes files smaller
Dinky is a lightweight developer tool designed to simplify interactions with large language models by providing a streamlined interface for prompt execution and experimentation. It focuses on usability, offering a minimal environment where developers can quickly test prompts, iterate on outputs, and refine workflows without complex setup. The project is built with simplicity in mind, making it easy to integrate into existing development processes or use as a standalone experimentation tool. It supports flexible configuration, allowing users to connect to different model providers and adjust parameters as needed. Dinky also emphasizes speed, enabling rapid iteration cycles that are essential for prompt engineering and prototyping. Its design avoids unnecessary complexity while still providing enough functionality for practical use. Overall, Dinky serves as a compact and efficient tool for exploring and testing AI-driven interactions. -
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zpaqfranz
Zpaq compatible archiver for Win, Linux, Free/OpenBSD, Solaris & MacOS
High-Performance Archiver & Backup for Mission-Critical Data Bulletproof archival for multi-TB datasets, NAS, and VM backups Built for speed: multi-core CPUs and modern SSD/NVMe drives to achieve 1 GB/s+ throughput, up to 3x faster than 7-Zip Far more efficient and versatile than Time Machine or ZFS snapshots Key Features: ✓ Deduplicated, incremental & versioned backups ✓ Anti-ransomware integrity checks & deep validation ✓ Multi-hash support: SHA-2, SHA-3, BLAKE3, XXH3 & more ✓ Strong encryption & low bandwidth overhead for Cloud/NAS/USB ✓ Full deduplicated disk imaging ✓ Read-only Archive Mounting in filesystem ✓ Includes GUI (Win/Linux/Mac): sourceforge.net/projects/catpaq Cross-Platform & Lightweight: Runs on Windows (inc. XP), Linux, macOS, FreeBSD, OpenBSD, TrueNAS, Synology, QNAP, ARM, and ESXi. 15+ years of active development • 100% FOSS • Forever Free github.com/fcorbelli/zpaqfranz www.francocorbelli.it/zpaqfranz -
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pngcrush and other tools for manipulating PNG (Portable Network Graphics) and MNG (Multiple-image Network Graphics) files.
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archiver
Easily create & extract archives, and compress & decompress files
Introducing Archiver 4.0 - a cross-platform, multi-format archive utility and Go library. A powerful and flexible library meets an elegant CLI in this generic replacement for several platform-specific or format-specific archive utilities. The core library APIs work pretty well but the command has not been implemented yet, nor have most automated tests. If you need the arc command, stick with v3 for now. Create and extract archive files. Walk or traverse into archive files. Extract only specific files from archives. Insert (append) into .tar files. Numerous archive and compression formats supported. Extensible (add more formats just by registering them) Cross-platform, static binary. Pure Go (no cgo). Multithreaded Gzip. Adjust compression levels. Automatically add compressed files to zip archives without re-compressing Open password-protected RAR archives. -
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Zippy
Pure Nim implementation of deflate, zlib, gzip and zip
Zippy is a pure Nim implementation of DEFLATE, ZLIB, GZIP, and ZIP data compression formats, aiming to be small, performant, and dependency-free. -
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7-Zip-JBinding
Java wrapper for 7z archiver engine
Native (JNI) cross-platform library to extract (password protected, multi-part) 7z Zip Rar Tar Split Lzma Iso HFS GZip Cpio BZip2 Z Arj Chm Lhz Cab Nsis Deb Rpm Wim Udf archives and create 7z, Zip, Tar, GZip & BZip2 from Java. -
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Compressor.js
JavaScript image compressor
Compressor.js is a lightweight JavaScript library for in-browser image compression that allows developers to reduce file sizes before uploading images to a server, improving performance and user experience. It works by taking an input image (such as from a file input) and resizing or reencoding it on the client side according to developer-specified options like maximum width, height, quality, and MIME type. Because compression happens in the browser, users upload smaller images without sacrificing responsiveness or relying on server resources, which is especially useful for mobile users or limited-bandwidth environments. The library supports modern browsers and automatically handles orientation based on EXIF metadata, ensuring images appear correctly after compression. -
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Snappy
A fast compressor/decompressor
Snappy is a compression/decompression library. It does not aim for maximum compression, or compatibility with any other compression library; instead, it aims for very high speeds and reasonable compression. For instance, compared to the fastest mode of zlib, Snappy is an order of magnitude faster for most inputs, but the resulting compressed files are anywhere from 20% to 100% bigger. Snappy is intended to be fast. On a single core of a Core i7 processor in 64-bit mode, it compresses at about 250 MB/sec or more and decompresses at about 500 MB/sec or more. (These numbers are for the slowest inputs in our benchmark suite; others are much faster.) In our tests, Snappy usually is faster than algorithms in the same class (e.g. LZO, LZF, QuickLZ, etc.) while achieving comparable compression ratios. -
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Zip-Ada
A standalone, portable Ada library for .zip archives
Zip-Ada is a library for .zip archives. Full sources are in Ada and are unconditionally portable. Input and output can be any stream (file, buffer,...) for archive creation as well as data extraction. Task safe and endian-neutral. More information on: http://unzip-ada.sf.net Alire crate: https://alire.ada.dev/crates/zipada Mirror: https://github.com/zertovitch/zip-ada/ -
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Rar Expander is a MacOSX program which extracts the files contained in single or multi-volume RAR archives. It uses the official unRAR library internally so it is fully compatible with archives produced by WinRAR.
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UglifyJS 3
JavaScript parser, mangler, compressor, beautifier toolkit
UglifyJS is a JavaScript compressor/minifier written in JavaScript. It also contains tools that allow one to automate working with JavaScript code. A parser which produces an abstract syntax tree (AST) from JavaScript code. A code generator which outputs JavaScript code from an AST, also providing the option to get a source map. A compressor (optimizer). it uses the transformer API to optimize an AST into a smaller one. A mangler, reduce names of local variables to (usually) single-letters. A scope analyzer, which is a tool that augments the AST with information about where variables are defined/referenced etc. A tree walker, a simple API allowing you to do something on every node in the AST. A tree transformer, another API intended to transform the tree. All the above utilities and APIs are defined in ~6500 lines of code (except for the effective generation of the source-map, which is handled by the source-map module). Compared to alternatives, UglifyJS is pretty small. -
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TurboPower Abbrevia
Advanced data compression toolkit for Delphi and C++Builder
Abbrevia is a compression toolkit for Delphi, C++Builder, Kylix, and Free Pascal. It supports compressing and decompressing PKZIP, Microsoft CAB, tar, gzip, and bzip2 archives, and can create self-extracting executables. On Windows it also provides Delphi wrappers for the LZMA, Bzip2, and WavPack SDKs, and PPMd decompression. Abbrevia also has several visual controls that simplify displaying and manipulating archives, including treeview and listview components. -
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J7Z
An alternative 7-Zip GUI
J7Z is an alternative 7-Zip GUI. It was designed by Xavion. 7-Zip is a high-compression file archiver. It was designed by Igor Pavlov. Use J7Z if you want to: * Update existing archives quickly * Backup multiple folders to a storage location * Create or extract protected archives * Lessen effort by using archiving profiles and lists -
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Crunch
Insane(ly slow but wicked good) PNG image optimization
Crunch is an image compression tool for lossy PNG image file optimization. Using a combination of selective bit depth, color palette reduction and color type, as well as zopfli DEFLATE compression algorithm encoding that employs the pngquant and zopflipng PNG optimization tools, Crunch is effectively able to optimize and compress images with minimal decrease in image quality. While it may produce file size gains larger than those produced by lossless approaches, the impact on image quality is often imperceptible, and optimized file sizes are still significantly lower than the original. -
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Atol is a classical dual panel file manager aiming to be portable to both Linux and Windows OS (using C++ and GTK+ toolkit)
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ARC is used to create and maintain file archives. An archive is a group of files collected together into one file in such a way that the individual files may be recovered intact. This repo is obsolete. Use github.com/hyc/arc instead.
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Moved to GitHub.com/gdraheim/zziplib/ The ZZIPlib provides read access on ZIP-archives. The library uses only the patent-free compression-algorithms supported by Zlib. It provides functions that transparently access files being either real files or zipped files, both with the same filepath
