The best open source alternative to WinRAR is 7-Zip. If that doesn't suit you, our users have ranked more than 50 alternatives to WinRAR and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to WinRAR are PeaZip, NanaZip, Portable Secret and FreeArc.
Feature-rich archiving software with top-tier compression in 7z, integration in Windows Shell, AES-256 encryption, and multi-format support, including TAR, ZIP, RAR. Offers strong file management tools and a command line version for Linux/Unix systems.
PeaZip is free file archiver utility, based on Open Source technologies of 7-Zip, p7zip, FreeArc, PAQ, and PEA projects, for Linux, macOS and Windows.
NanaZip is an open source file archiver intended for the modern Windows experience, forked from the source code of well-known open source file archiver 7-Zip.
Creates a single HTML file containing encrypted content and decryption logic, supporting text and file attachments, AES-GCM encryption, Argon2id key derivation, browser-based decryption, password hints, offline access, and open-source operation.
FreeArc is a free and open source file archiver developed by Bulat Ziganshin. It uses LZMA, PPMD, TrueAudio and GRzip algorithms with automatic switching by file type, and also uses set of filters—for instance it can remove repetitions from text.
7-Zip with support for Zstandard, Brotli, Lz4, Lz5 and Lizard Compression. Open source under LGPL-2.1 license.
Ark is a program for viewing, extracting, creating and modifying archives. Ark can handle various archive formats such as tar, gzip, bzip2, zip, rar, 7zip, xz, rpm, cab and deb (support for certain archive formats depend on the appropriate command-line programs being installed).
p7zip is a port of the command line version of the 7-Zip file archiver to POSIX-conforming operating systems like Unix (Linux, Solaris, OpenBSD, FreeBSD, Cygwin, AIX, ...), MacOS X and also for BeOS and Amiga.
File Roller is the archive manager of the GNOME desktop environment. It can extract, view, create and modify archives. File Roller is only a graphical interface to archiving utilities such as tar and zip.
Xarchiver is a lightweight desktop independent archive manager built with the GTK+2 toolkit. It was developed with a simple GUI which that could be used with any desktop environment and would operate using the command line rather than API calls.
A simple and easy to use GUI based on 7zip for creating self-extracting archives and self-extracting installers.
Russia
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7-Zip is highly efficient, open source archiver.