MultiPar
Though console applications are open source (PAR clients are GPL), GUI application is closed source. Console applications and some UI resource are open source.
What is MultiPar?
MultiPar does archival-grade file verification and repair to protect files from all forms of loss or corruption. Backups alone are not enough because data will gradually "rot" without MultiPar. Data loss can be caused by errors in backup copying, deletion, software bugs, hardware errors, viruses, tampering, etc. MultiPar can restore data even if some files are completely erased.
MultiPar supports fast multicore processors, nested folders, PAR1, PAR2 (with extra features), and experimental versions of next-generation PAR3 technology. PAR3 is not reliable yet, so please use PAR2 for normal data protection. MultiPar replaces 
QuickPar . MultiPar's GUI is from the look and feel of QuickPar.
!NOTE!
- multipar.eu belongs to a 3rd party, author no longer use it [ http://hp.vector.co.jp/authors/VA021385/archive.htm ]
- Discussion forum 1 (down frequently) [ https://www.livebusinesschat.com/smf/index.php?board=414.0 ]
- Discussion forum 2 (down frequently) [ https://www.livebusinesschat.com/smf/index.php?board=396.0 ]
- Author official download provider is Vector [ https://www.vector.co.jp/soft/dl/winnt/util/se460801.html ]
- Author main site is Vector [ http://hp.vector.co.jp/authors/VA021385/ ]
MultiPar Screenshots
MultiPar Features
MultiPar information
Supported Languages
- English
Comments and Reviews
Tags
- File Copy
- data-maintenance
- data-migration
- File transfer
- error-checker
- data-integrity-test
- File Recovery
- verify
- File Backup
- verification
- hash
- Backup and Restore
- hash-checker
- file-maintenance
- File Manager
- Backup
- Data Security
- file-verification
- hashes
- error-correction
multipar.eu is a malicious spam site that hosts altered versions of Yutaka Sawada's MultiPar. Do not go there. I don't know how this keeps getting into alternativeto. They have been notified in the past, and they fixed it, only to be defeated again by the same spammer.