When a future damage is predictable,
you can prepare for it with


  MultiPar can be downloaded from Vector's official download page which is written in Japanese. Please goto the page and click either green button to select which version. At the next page, click a green button to start download. If you cannot get from there, you may try other links below.

Where to click on selection page

Where to click on download page

 Soft name: MultiPar
File:MultiPar129.zip  /  819,312 Bytes  /  2016 Dec. 12
Installer version
File:MultiPar129_setup.exe  /  1,116,223 Bytes  /  2016 Dec. 12

Samples are available to test new feature, check problem, or confirm fixed point.

 Soft name:MultiPar beta  New
File:MultiPar1306.zip  /  973,485 Bytes  /  2019 Sep. 29
Installer version
File:MultiPar1306_setup.exe  /  1,273,658 Bytes  /  2019 Sep. 29

  Other versions and source code are available from archive page.

100% CLEAN award granted by Softpedia

  "MultiPar" has been tested in the Softpedia labs using several industry-leading security solutions and found to be completely clean of adware/spyware components. More information about my product's certification and the award is available on this page.

MultiPar was prized in the final vote of 2012's popularity contest over Vector

  There was a popularity contest over Vector, which selects the best and prize for each section from weekly/monthly ranking top 100 softwares in 2012. MultiPar was selected in System & Hardware section. I appreciate many users' help, and proud that my development is supported. I will try to improve MultiPar to become more major and common tool.

External link

MultiPar forum A user made a forum for MultiPar. It's a public space of users to discuss and report bug.
  I post sample versions or test packages here. You may download previous versions or source code packages at old pages. I cannot access this sometimes. If someone wants to contact me soon, please use e-mail. For those who cannot see the web-forum, I added download link of sample versions on Microsoft OneDrive.
European Mirror A user made an unofficial download site for European users.
  If you cannot download files from official site, you may try un-authorized site at your own risk. Because this site is releasing files which I didn't upload, you had better check hash values to compare with values on authorized page. Because the online documents were edited or obsolate, refer the latest documents in MultiPar package. Users must not donate on the site, but use below.
Updated par2cmdline The latest version of par2cmdline is available for Linux/Unix/Windows users.
  Because I made my PAR2 client (par2j.exe) independently from par2cmdline project, the command-line syntax and printing are absolutely different from par2cmdline family. If you want to replace an old par2cmdline on Windows OS, you can download Windows binary from here.
For parchive developer Parchive Specification and Client Developer Discussion List


How to install MultiParThese come from MultiPar package2014 Dec. 1
Japanese install manual
PAR 1.0 SpecificationsJapanese translation2009 Nov. 17
PAR 2.0 SpecificationsJapanese translation2014 Oct. 2
Galois Field calculatorTool for easy calculation over Galois Field with Java Script2014 Oct. 1


  While MultiPar is available as freeware, I spent a lot of time and effort to develop. Your donation will encourage me to continue my efforts to improve and support MultiPar. I made PayPal account, and you can donate below;

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Last update 2019 September 29 by Yutaka Sawada.