Parchive (a portmanteau of parity archive, and formally known as Parity Volume Set Specification) is an erasure code system that produces par files for checksum verification of data integrity, with the capability to perform data recovery operations that can repair or regenerate corrupted or missing data. Developed by Yutaka Sawada
License: Free
QuickPar is a software that creates parchives used as verification and recovery information for a file or group of files, and uses the recovery information, if available, to attempt to reconstruct the originals from the damaged files and the PAR volumes. Developed by Peter B. Clements
License: Free
MultiPar is a robust tool with extensive features for file repair and batch processing, making it suitable for users who require high performance. QuickPar, while user-friendly and offering a portable option, lacks some advanced functionalities and is better suited for users looking for simplicity and command-line capabilities.