What is PeaZip, how to install PeaZip on Windows, Linux, notes for users, developers.         

Learn more about PeaZip free file archiver utility, frontend for 7-Zip FreeArc PAQ PEA

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PeaZip is a free archiverfile archiver and file managerfile management tools utility, based on solid and proven Open Source technology of 7-Zip and other great Open Source tools (like FreeARC, PAQ, UPX...) for supporting additional file formats and features, in order to provide an all purpose zip utility featuring a powerful unified GUI that, unlike most of other classic file archivers like i.e. WinZip and WinRar, is natively portable and cross-platformwhat is multi platform software, being available for computers or tablets running 32 bit and 64 bit Windows (9x, NT/2K/XP, Vista/7/8/10, ReactOS, Wine), Linux or BSD x86 and x86-64 (desktop neutral application, supports Gnome, KDE and other desktop environments).

PeaZip is Free Software, under Open Source license LGPLv3Lesser GPL license version 3, and it is free of charge for any use (personal and professional, business or governament), modification, and distribution, without "expiration date" or "trial" limitations.

Full (read/write) support

7z, FreeArc's arc/wrc, sfx (7z and arc), Brotli br, bz2, gz, paq/lpaq/zpaq, pea, quad/balz/bcm, rar (if Rar.exe is available on the system), split, tar, upx, wim, zip / zipx, Zstandard zst

Supporyted encryption standards

7Z: 7-Zip AES256 encryption

ZIP: WinZip AES256 AE, and ZipCrypto for legacy compatibility; can decrypt PKZip's AES encryption

RAR, if Rar.exe is available in the system: RAR4 EAS128, RAR5 AES256

ARC: FreeARC AES256, Blowfish, Twofish256 and Serpent256

PEA: AES256 EAX authenticated encryption

Read (browse, extract, test)

7z,  Google Android's apk, Google's Brotli br, bz, bz2, bzip2, tbz2, tbz, Facebook's Zstandard zst and tzst, gz, gzip, tgz, tpz, tar, zip, zipx, z01, smzip, arj, cab, chm, chi, chq, chw, hxs, hxi, hxr, hxq, hxw, lit, cpio, deb, lzh, lha, rar (and most recent rar 5 revision), r01, 00, rpm, z, taz, tz, iso, Java (jar, ear, war), pet, pup, pak, pk3, pk4, slp, [Content], xpi, wim, u3p, lzma86, lzma, udf, xar, Apple's dmg, hfs, part1, split, swm, tpz, kmz, xz, txz, vhd, mslz, apm, mbr, fat, ntfs, exe, dll, sys, msi, msp, Open Office / Libre Office (ods, ots, odm, oth, oxt, odb, odf, odg, otg, odp, otp, odt, ott), gnm, Microsoft Office (doc, dot, xls, xlt, ppt, pps, pot, docx, dotx, xlsx, xltx), Flash (swf, flv), quad, balz, bcm, zpaq, paq8f, paq8jd, paq8l, paq8o, lpaq1, lpaq5, lpaq8, ace through separate unace plugin (closed source) available on PeaZip add-ons page, arc, wrc, 001, pea, cbz, cbr, cba, cb7, cbt (and more...)


FreeArc's arc/wrc
RAR, if Rar.exe is available in the system

PeaZip can also be used to try to open any arbitrary file extension with "Open as archive" menu entry, as many file formats are simply variants of archive formats (especially of zip standard).
Even more file structures (forensic file types, WavPack compressed files, etc) can be parsed extending PeaZip capabilities via standard 7-Zip Codecs, copying extra codecs to PeaZip's folder in res\7z\Codecs path.
In example a large family of codecs (compatible with PeaZip and 7-Zip) is available here7Z codecs - please note TC4Shell codecs are free but closed source, so they can be freely downloaded and installed by end users but they cannot be distributed within PeaZip packages.

PeaZip is localized over than 30 languages and is capable of handling all most popular archive formats (200+ file types), supporting a wide array of advanced file and archive management features (search, bookmarks, thumbnail viewer, find duplicate files and compute hash/checksum value, add, update and edit files inside existing archives, convert archive files...), especially focused on security (strong file encryption, two factor authentication, encrypted password manager, secure file deletion...).
The distinctive trait of PeaZip is the innovative and easy to use compression/extraction interface, more similar to CD burners interfaces rather than to a classic file compressor. This design makes extremely simple to check (and update) items set for compression and extraction, integrating a full featured file manager component.
Also, tasks created in the GUI can be easily saved as batch scripts, in order to automate backup operations, or for fine tuning, or for learning purpose, bridging the gap between the ease of use of GUI applications and power and flexibility of console.

what is peazip free file archiver what is peazip for linux learn more about peazip
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How to install / uninstall PeaZip free file archiver utility

PeaZip 64 bit free archiver for Windows is meant to run on 64 bit Microsoft Windows systems only, while PeaZip 32 bit for Windows is meant to run on any 32 or 64 bit Windows version and it is now recommended only for legacy systems.
You can check if you are running a 64 bit MS Windows operating system rightclicking on the "Computer" icon on the desktop and reading the system type in "Properties".
This program requires full Win32 support, so it is compatible with any desktop PC and tablet home or professional Microsoft Windows system, or compatible API (Wine, ReactOS), but it is not officially supported on Windows RT devices.

Windows 9x and NT4 are no longer supported, starting from release 5.5.2 (2014 12 23) as 7x 9.35 backend requires Windows 2000 or newer system; last version supporting Windows 9x and NT4 is PeaZip 5.5.1, see Experimental & legacy directory. Older releases are available here.

To run unattended installation launch the Windows installer with /SILENT parameter; use /VERYSILENT for background installation, without notification to the users.
To re-configure system integration (file associations, context and SendTo menu), you can use Options > System integration.
During install, PeaZip creates entries in SendTo menu that can be simply copied to one user to another as needed, they are located in C:\Documents and Settings\(username)\SendTo (Windows XP) or C:\Users\(username)\AppData\Roaming\Microsoft\Windows\SendTo (Vista/7), assuming C as system's disk.

PeaZip can be uninstalled from Add/Remove Programs in system's Control Panel.
Alternatively you can uninstall it from Start menu PeaZip > Uninstall PeaZip entry, or running unins000.exe in PeaZip's installation path.
When uninstalled, PeaZip restores files association with Windows' Compressed Folders for the supported file types; to restore file associations with a third party file archiver software please refer to its own documentation, usually it can be done running the program's setup package or from the original application itself. To manually restore file associations with Compressed Folders utility run: cmd /c assoc .zip=CompressedFolder replacing .zip with any file extension it is desired to be re-associated.

Install and run PeaZip on Linux

To add PeaZip to Gnome menu copy the "Archiving" folder placed in PeaZip/Freedesktop_integration/nautilus-scripts to system's Nautilus script's folder (in most versions open "Scripts" menu in system's context menu, and select "Open script's folder").

PeaZip is meant to be desktop neutral as possible, so it is not limited to be used under KDE and Gnome, and does not requires different packages to run on different desktop environments.
On PeaZip's official website are featured generic Linux packages, meant to be compatible with as many distributions and versions as possible, providing the system supports the widgetset (GTK2 * or Qt **).

Third party packages explicitly targeted to a specific distribution/version can be found from external links and in official distribution's repositories, those packages are highly recommended for best integration with a specific Linux distribution / version.
If PeaZip is missing in your distribution's repositories please take time to recommend it to distribution's maintainers, pointing them to this website for evaluating possible advantages in featuring PeaZip

If a package does not run on a specific system please launch peazip binary on a console to get a more detailed error report.

Please note that ia32-libs are required to run PeaZip, as any other 32 bit binary, on 64 bit systems.

PeaZip archive manager for Linux is available for x86_64 architecture, and PeaZip for Linux x86 packages are available for legacy / reduced resources systems.
If you are interested in ARM / aarch64 architecture porting (including support for Google Android / ChromeOS) you can refer to Linux for ARM page.

* On some Linux distributions the GTK2 version may require to install some components of gtk/gdk libraries, like libgdk_pixbuf, those components are quite common and can be usually found in repositories of each distribution.

** Qt widgetset packages requires Qt 4.5 or more recent, and needs libQt4Pas.so installed in /usr/local/lib or equivalent directory (copy the file and run ldconfig; it is done automatically in installable packages), such as /usr/lib or /usr/lib32 on some 64 bit distributions.
A copy of libQt4Pas.so is available in PeaZip's directory, ./usr/local/share/PeaZip/ for the installable packages.
If the Qt version does not start on some systems, as some system's visual styles may cause recursive repainting error, you can fix the problem starting it in a console (or script) as: peazip -style=cleanlooks

Other systems

PeaZip Portable for BSD contains natively compiled peazip, pea, pealauncher, and p7zip executables, providing most of the program's funtions are performed by native binaries.
For other backends, Linux binaries are used due to binary compatibility provided by BSD systems to Linux executables.
It is a Portable version of PeaZip, that means no installation is required: the Portable application is autocontained, so the software can be unpacked and used starting peazip executable, see next paragraph for more information.
BSD binaries are precompiled for i386 and GTK2; ia-32 libs needs to be installed in ia64 systems.
Alternatively, PeaZip Portable for Linux packages (GTK2 or Qt) can be used on BSD systems.

PeaZip for macOS is available as DMG package for macOS or Darwin systems both for Intel (x86_64) and Apple Silicon M1 (aarch64) architectures.

Portable software versions

PeaZip Portable file archiver is available either for Microsoft Windows, Linux, and macOS: it does not require installation / unistallation and does not modify your system so it is recommended if you want to test the application, to run it from a removable device, to make it available over the network avoiding local installations, or if you should not modify host system (i.e. library freeze in production machines).
To use the program simply unzip the package where you like, i.e to a removable device, to bring the application with you, or to a network path, to share the application with other users, or just to the desktop.
To remove the program simply delete PeaZip's directory.
PeaZip Portable packages for Windows has a dedicated download page, while PeaZip Portable for Linux packages are available on download pages for Linux for each supported architecture (x86_64, x86, ARM/aarch64).
Due the unique macOS app structure, all PeaZip packages form macOS can be either installed (peazip app dragged into macOS Applications folder) or used "as is" as Portable packages, simply opening the DMG package and running peazip app.

Notes for users

PeaZip free file archiver is available in many different languages, click Options > Localization to modify language of the GUI. If you are willing to contribute a translation please check information Notes for translators below to know how to contribute.

Over networks, this application can be made available to multiple users, either with a shared configuration or with separate configuration for each user, see "Settings" and "Customization and scripting" in the help file (F1), that also contain useful hints for enhancing PeaZip's system integration and use of PeaZip in scripts.
PeaZip is built to be fully modular, you can freely replace backend executables in PeaZip/res directory with updated ones (as long as they support the same syntax) or with 64 bit counterpart if available.
If the host system cannot or should not be modified it is recommended to use PeaZip Portable, that runs without installation and can be simply extracted in any path, even on the network or on removable devices as USB memories.

Extraction of ACE files is possible installing a separate plugin (due to UNACE freeware but closed source nature) available in Add-ons page.
Please note ACE support is NOT featured out of the box and requires optional (an dnot recommended) manual installation of UNACE Plugin.
Because ACE format and closed source UNACE binary are no longer actively maintained, hanlding ACE archives is no longer considered secure, and UNACE components are not featured in standard PeaZip packages to avoid ACE-related security issues.

Extraction of RAR / RAR5 files (created with WinRar using "rar5" option) is now natively supported by PeaZip and UNRAR / UNRAR5 Plugin (based on RarLab's code) is no longer needed, but still available as alternative rar extraction engine.

UTF-8 support

PeaZip GUI is fully UTF-8 compliant since release 2.2.0, and internal filename handling functions can work with UTF-8 filenames since release 3.0.1 in Linux, and since release 5.8.0 in Microsoft Windows.
For more information check UTF-8 support status in Lazarus/FreePascalunicode rar zip files and PeaZip sources comments.

Custom drag and drop (Windows)

On MS Windows systems PeaZip uses a custom drag and drop extraction (from application to system) that doesn’t need to copy files being dragged to system’s temp folder before, resulting in faster operation when big files are involved, and in better security if temp folder has not the same desired security policies of actual output folder.

PEA archive type limitations
Such a list can be all but complete, however: when I designed PEA archive format I was less experienced and I basically didn't take in account the need to browse the archive or to partially extract objects; just to create and extract it.
Since filenames are, by design, saved along file streams, there is not an easy way to accomplish it without parsing the entire archive (which can be a reasonable solution only for small archives) or without changing format specifications breaking the compatibility with former versions.
A workaround I may implement in future to allow archive browsing could be creating an extra text filecontaining filenames, saved as first archive's object; that will not introduce backward incompatibility since previos PEA version could still correctly handle the new archives (just having the list-file as extra content) and will be quite painless introducing negligible space and speed payload, unless archiving many small files.
This is just an hypothetical evaluation and there still is not a roadmap about it. Anyway this is a PEA format related issue has no impact on users using PeaZip to handle formats other than PEA.


You can find a stub of cryptoanalisys of PEA archive format on PEA online help (.pdf)

For tutorial, and for contacts, see Support (help) page.
For question&answers about common usage topics, see Frequently Asked Questions page

Notes for translators

How to provide or maintain a translation

Language files are UTF-8 encoded text files which can be edited using any suitable text editor.

To create a new translation file you can:
1 - copy default.txt (in PeaZip's path in /res/lang subfolder) or any other language file, if you prefer starting from another language, to a new file;
2 - edit lines 2 to 6 of the document to enter language name (both in English and in the original language for better readability), PeaZip's version (major.minor) the translation is aimed to, translator's and last last revisor's name and last revision date; IMPORTANT: revision number must not be specified alongside major.minor release number in 3rd line of language files since revisions shares the same text and are meant to deploy between-releases updates, ie.e for bugfixing or for packaging additional translations or resources.
3 - translate the text after the "variable_name: " part in "=== PeaZip text group ===" AND "=== PeaLauncher text group ===" sections of the file (don't move or remove lines, don't change the "variable_name: " part);
4 - optionally, translate the mini-tutorial after "=== about text group ===" line (free editing, it is loaded and displayed "as is" as application's mini-tutorial); it is very important to improve usability of the program for non-English speaking users.

In PeaZip Translations directory on GitHub you can find a package named peazip-x.y.z.about_translations.zip (in x.y release subdirectory) containing a spreadsheet file to help in creating and maintaining localizations, simply compiling column D of the spreadsheet.
IMPORTANT: the spreadsheet contains 3 pages, "PeaZip text group", "PeaLauncher text group", and "About text group": all pages need to be completed and pasted (column E, for first two pages) in the language file; the "About text group" can be freely edited.
The spreadsheet shows variable name (column B), corresponding text string in english (column C) and a blank, yellow column (D) for typing the translated text strings.
On the right, a column E (blue) will show the "variable_name: " part assembled with the translated string: the content of this area can be copied and paste to replace the text in "=== PeaZip text group ===" and "=== PeaLauncher text group ===" sections (the spreadsheet features TWO pages, one for each of the two groups).
Lines must be pasted in the original order (it is sufficient to sort them by column F).

After column F are featured all currently available translations, in order to help translators more proficient in other languages than Englis, and to help to spot out what localizations need to be updated.
At each version all language files are mass-updated, with missing text lines in English; to update a localization, it's enough to update the English text lines.
For a better result it is also recommended to check all the language file to see if the update is coherent with linguistic style used by the translator of the current version.
For languages spoken in different ways in different countries (i.e. English, Spanish, Portuguese...) it is recommended to fork the translation, creating i.e. en-us, pt-br etc
Default language file is default.txt

Translated language files can be sent to me using the address giorgio.tani.software@gmail.com (don't forget to remove the _removethis_ part), to be evaluated for inclusion in future updates and publication on PeaZip's Translations directory.
All translated language files should be considered as released under GFDL, GNU Free Documentation License, as they have to be considered derivate work from the application's language file which is released under GFDL.

Project's goals

how to install peazip

PEA - Pack Encrypt Authenticate

The initial goal of the application was creating a frontend for Pea archiver utility, implementing PEA archive format, designed ground up by myself to primarily focus on security and integrity: I wanted something performing strong authenticated encryption and perform integrity checks on both input objects and output volume(s). Pea offer those characteristics, and is open source (LGPL) freeware; file format specifications are released under public domain. I did a bit of cryptanalisys of it (see Documentation package); I hope more authoritative people may analyze it further.

Most archivers offer strong encryption, but bounded to password-only auhentication: Pea executable offers two factor authentication to increase encryption's security margins against password-related threats, like social engineering, dictionary attacks, bruteforcing, keylogging...

learn more about peazip

Bring focus on Lazarus/FreePascal

I'm developing PeaZip project in FreePascal language, under Lazarus IDE. I like Pascal-related languages and I think Lazarus/FreePascal is one of the best cross-platform IDE available; I like it even more because it is open source and because it's growing day by day in a more mature and powerful IDE. I'll be glad to bring a bit of developer's attention on Lazarus/FreePascal through my project.

what is file archiver utility

Archiving and compression

Designing PeaZip UI, I'm aiming to focus on archive-specific tools, operations and needs rather than focusing on offering a faithful emulation of a file browser, like many mainstream archivers does. Saving lists of objects to be archived, saving archiving/extraction job definitions and receiving detailed job log after operations are primary goals of PeaZip UI. However, PeaZip's system integration, if desired, allows the user to perform most common operations (add to archive, extract here, encrypt, split file etc) without even care of the main program UI.

7-Zip (and Myspace p7zip POSIX port) : thanking Igor Pavlov 7z choice of offering code licensed under LGPL I was able to easily add support to many mainstream archive and compression formats to PeaZip, transforming it from a niche project (formerly named Pea-Peach) to a possibly wider targeted software. I hope I can turn back to them part of the benefit supporting .7z archive format, especially on Linux systems, offering a ready to use solution to extract and archive in .7z format among others.

ARC: a new, very promising archive format, featuring powerful but efficient compression, strong encryption and recovery records.

Brotli: fast data compression algorithm backed by Google and made available as single file compressor

PAQ, LPAQ, ZPAQ: one of the most promising research project in the field of maximum compression is Matt Mahoney's Paq. Many different implementation and branches exists, as command line binaries and or integrated in archivers with GUI (like WinRK, WinUDA, KGB Archiver etc). PeaZip act as GUI fronted to various *Paq, hoping to contribute to the diffusion of this high compression format and in bringing focus on this interesting research project.

QUAD/BALZ/BCM: Ilia Muraviev's very promising single file compression software featuring high compression ratio and fast decompression, making them very well suited in scenarios were decompression occurs more often than compression (i.e. package release).

Strip/UPX: to provide a GUI frontend for Strip/UPX that comes to be very handy for developers to reduce executables size.

Zstandard: fast data compression algorithm backed by Facebook and made available as Zstd single file compressor

Two factor authentication: since version 2.1 PeaZip can use keyfiles for any supported format featuring encryption. The SHA256 hash of the keyfile (no size limit) is encoded in Base64 (RFC 4648) and prepended to the password. So, it is possible to work on archives encrypted in that way using PeaZip or any application following the same convention, or simply entering the Base64-encoded hash as the first part of the password.

Synopsis: What is PeaZip free file archiver utility. How to install and uninstall PeaZip on Windows, Linux, and other operating systems. Notes for users, translators, developers. Learn more about third party technologies employed in PeaZip, and project's goals.

Topics: what is PeaZip, how to install and uninstall, notes for users

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