Initial release22 April 1995; 28 years ago (1995-04-22)
Stable release
6.24[3] Edit this on Wikidata / 5 October 2023
Written inC++
Operating systemWindows Vista or later
PlatformIA-32, x64
Size3.4 MB
Available in50+ languages[4]
List of languages
Arabic, Armenian, Azerbaijani, Basque, Belarusian, Bulgarian, Burmese, Catalan, Chinese Simplified, Chinese Traditional, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, Galician, Georgian, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Lithuanian, Mongolian, Norwegian, Persian, Polish, Portuguese, Brazilian Portuguese, Romanian, Russian, Serbian Cyrillic, Slovak, Slovenian, Spanish, Colombian Spanish, Swedish, Thai, Turkish, Ukrainian, Uzbek, Vietnamese
TypeFile archiver

WinRAR is a trialware file archiver utility for Windows, developed by Eugene Roshal of win.rar GmbH. It can create and view archives in RAR or ZIP file formats,[6] and unpack numerous archive file formats. To enable the user to test the integrity of archives, WinRAR embeds CRC32 or BLAKE2 checksums for each file in each archive. WinRAR supports creating encrypted, multi-part and self-extracting archives.

WinRAR is a Windows-only program. An Android application called "RAR for Android" is also available.[7] Related programs include the command-line utilities "RAR" and "UNRAR"[8] and versions for macOS,[4] Linux, FreeBSD, Windows CE, and MS-DOS.


See also: RAR (file format)

WinRAR and the RAR file format have evolved over time. Support for the archive format RAR5, using the same RAR file extension as earlier versions, was added in version 5.0;[9] the older RAR file format has since been referred to as RAR4. WinRAR versions before 5.0 do not support RAR5 archives;[10] only older versions of WinRAR run on Windows versions prior to Windows Vista, and cannot open RAR5 archives.

The RAR5 file format - from version 7 on, referred to as "RAR" - increased the maximum dictionary size up to 64 GB, depending on the amount of available memory, with the default in version 5 increased from 4 MB to 32 MB, typically improving compression ratio. For dictionaries larger than 4 GB, the size can be specified if it is unequal to a power of 2. Thus, there are no restrictions to the range 4, 8, 16, 32, 64, allowing 5 GB or 22 GB to be chosen at will. Archives with dictionaries larger than 4 GB can only be extracted by WinRAR 7.0 or newer. AES encryption, when used, is in CBC mode and was increased in strength from 128- to 256-bit. Maximum path length for files in RAR and ZIP archives is increased from 2047 to 65535 characters.[10]

Options added in v5.0 include 256-bit BLAKE2 file-hashing algorithm instead of default 32-bit CRC32, duplicate file detection, NTFS hard and symbolic links, and Quick Open record to allow large archives to be opened faster.[10]

The RAR5 file format removed comments for each file (though archive comment still remains), authenticity verification, and specialized compression algorithms for text and multimedia files. RAR5 also changed the file name for split volumes from "archivename.rNN" to "archivename.partNN.rar".[10]


When creating RAR archives:


The software is distributed as "try before you buy"; it may be used without charge for 40 days.[2] When the period expires, the non-enterprise functionalities remain available, a move intended to discourage piracy.[5] In China, a free-to-use personal edition has been provided officially since 2015.[15]

Although archiving with the RAR format is proprietary, RARLAB supplies as copyrighted freeware the C++ source code of the current UnRAR unpacker, with a license allowing it to be used in any software, thus enabling others to produce software capable of unpacking, but not creating, RAR archives.[16]

RAR for Android is free of charge. It displays advertisements; for a payment they can be disabled.[7] A license for WinRAR does not provide ad-suppression for RAR for Android.


In February 2019, a major security vulnerability in the unacev2.dll library which is used by WinRAR to decompress ACE archives was discovered.[17][18] Consequently, WinRAR dropped the support for the ACE format from version 5.70.

Self-extracting archives created with versions before 5.31 (including the executable installer of WinRAR itself) are vulnerable to DLL hijacking: they may load and use DLLs named UXTheme.dll, RichEd32.dll and RichEd20.dll if they are in the same folder as the executable file.[10][19]

It was widely reported that WinRAR v5.21 and earlier had a remote code execution (RCE) vulnerability which could allow a remote attacker to insert malicious code into a self-extracting executable (SFX) file being created by a user, "putting over 500 million users of the software at risk".[20] However, examination of the claim revealed that, while the vulnerability existed, the result was merely an SFX which delivered its payload when executed; published responses dismissed the threat, one saying "If you can find suckers who will trust a .exe labelled as self-extracting archive ... then you can trick them into running your smuggled JavaScript".[21][22]

WinRAR 6.23 fixes a critical security vulnerability which allowed the hacker to automatically execute malware distributed in archives under some circumstances.[23]



Operating systems support

More recent versions do not support many older operating systems. Versions supporting older operating systems may still be available, but not maintained:

See also


  1. ^ (Russia, Chelyabinsk) WinRAR 3.40 release notes by Eugene Roshal (in Russian)
  2. ^ a b "RAR and WinRAR End User License Agreement (EULA)",, RARLAB, archived from the original on 2014-01-04, retrieved 2019-03-11
  3. ^ "WinRAR archiver, a powerful tool to process RAR and ZIP files".
  4. ^ a b "RAR download page". RARLAB. Archived from the original on 2020-06-09. Retrieved 2020-06-10.
  5. ^ a b CHM Tech. "WinRAR And The Infinite 40-Day Trial". YouTube. Archived from the original on 2021-12-22.
  6. ^ Manuel Masiero (18 March 2013)"Compression Performance: 7-Zip, MagicRAR, WinRAR, WinZip" Tom's Hardware. Retrieved 27 November 2013.
  7. ^ a b "RAR for Android; RARsoft". Archived from the original on 2014-12-22. Retrieved 2014-11-04.
  8. ^ a b Voloshin, Kirill (2011-03-10). Интервью по переписке [Interview by correspondence] (in Russian). Archived from the original on 2015-08-16. Retrieved 2014-10-27.
  9. ^ Martin Brinkmann (29 April 2013)"WinRAR 5.0 introduces the new RAR 5 format. What you need to know" Archived 2018-09-01 at the Wayback Machine Ghacks. Retrieved 27 November 2013.
  10. ^ a b c d e f g h i j k l m n o p q r s t u v w x "Latest changes in WinRAR (cumulative release notes for all versions)". RARLAB. Archived from the original on 2010-08-06. Retrieved 2018-09-01. Updated with each new beta test or released version. Current page has versions 4.00 and higher; archived page linked here has versions 3.70–3.93; older archived versions go back to 3.00
  11. ^ "Best Archive Tool". 2005-09-05. Archived from the original on 2009-06-02. Retrieved 2009-07-01.
  12. ^ "WinRAR 5 Final Released" Archived 2013-12-02 at the Wayback Machine Retrieved 27 November 2013.
  13. ^ a b Martin Brinkmann (7 September 2011). "How To Split Large Files Into Multiple Smaller Ones". gHacks Tech News. Archived from the original on 2017-04-16. Retrieved 15 April 2017.
  14. ^ WinRAR Help – GUI SFX modules: setup commands
  15. ^ "软众信息-WinRAR独家总代理商 最新官方简体中文版下载 支持64位非破解版压缩软件:软件介绍-致用户的一封信". Archived from the original on 2016-10-15. Retrieved 2016-10-18.
  16. ^ "WinRAR and RAR archiver addons (downloads, UnRAR for various platforms, and source code)". RARLAB. Archived from the original on 2018-09-01. Retrieved 2020-06-10. License says "The source code of UnRAR utility is freeware"
  17. ^ "Extracting a 19 Year Old Code Execution from WinRAR". Check Point Research. 2019-02-20. Retrieved 2019-03-13.
  18. ^ "WinRAR Multiple Security Vulnerabilities". Retrieved 2019-03-13.
  19. ^ Kanthak, Stefan (7 February 2016). "Executable installers are vulnerable^WEVIL (case 25): WinRAR's installer and self-extractors allow arbitrary (remote) code execution and escalation of privilege". Archived from the original on 2016-02-18. Retrieved 2016-02-20.
  20. ^ Shaikh Rafia (September 2015). "WinRAR Exploit Could Put 500 Million Users at Risk". Archived from the original on 2016-10-01. Retrieved 29 September 2016.
  21. ^ Darren Pauli (30 September 2015). "Smuggle mischievous JavaScript into WinRAR archives? Sure, why not". The Register. Archived from the original on 2016-09-27. Retrieved 29 September 2016.
  22. ^ "WinRAR Vulnerability Is Complete Bullshit". Darknet. 1 October 2015. Archived from the original on 2016-10-02. Retrieved 29 September 2016.
  23. ^ Goodin, Dan (2023-08-23). "WinRAR 0-day that uses poisoned JPG and TXT files under exploit since April". Ars Technica. Retrieved 2023-08-23.
  24. ^ "RAR - What's new in the latest version (v3.00 to v3.11)". Archived from the original on January 17, 2003.
  25. ^ a b "RAR - What's new in the latest version (v3.40 to v3.50)". Archived from the original on September 7, 2005.
  26. ^ "WinRAR archiver, a powerful tool to process RAR and ZIP files". RARLAB. Archived from the original on 2009-06-28. Retrieved 2009-07-01.
  27. ^ Nichols, Shaun (2019-02-20). "Behold… a WinRAR security bug that's older than your child's favorite YouTuber. And yes, you should patch this hole". Retrieved 2019-02-26.
  28. ^ "RAR 2.50 – Stats, Downloads and Screenshots". WinWorld. Archived from the original on 2017-08-15. Retrieved 14 August 2017.
  29. ^ a b "Downloads for: WinRAR, RAR for Mac OS X, RAR for Linux, RAR for DOS & OS/2, RAR for FreeBSD, with 40 days free trial". Archived from the original on 2017-08-15. Retrieved 15 August 2017.

Further reading