DySFV is an open-source utility for checking file integrity against CRC32 values stored in SFV documents. It can verify individual files or handle larger quantities, making it useful for checking downloads, backups, and other collections. A built-in clone finder also uses CRC32 to help locate files with matching checksum values. The program requires .NET Framework 3.5.
| Author: | dyster_ |
| License: | Open Source |
| Price: | FREE |
| Released: | Apr 20, 2011 |
| File size: | 123 kB |
| Downloads: | 519 |
| Keywords: | duplicate file finder, verify, DySFV, integrity, checksum checker, check file, x64 software, file verification tool, open-source software, sfv checksum utility, checksum verification, file integrity checker, integrity checker, Windows 10, dyster_, checksum, sfv file checker, crc32 checksum verifier |
| Author URL: | http://dysfv.sourceforge.net/ |
DySFV is an open-source file verification utility for checking whether files match the CRC32 checksums recorded in SFV documents. It is suited to both individual checks and larger collections, making it useful for people who need to confirm that files have not changed or become corrupted during storage or transfer.
To verify files, DySFV reads an SFV document and compares its recorded checksum values with the contents of the corresponding files. This gives users a way to check a collection against its checksum list rather than relying on filenames or file sizes alone. The utility can also be used on one file at a time, though it was designed with larger quantities in mind.
A clone finder is included and uses the same CRC32 function. It can help identify files with matching CRC32 values, which is useful when reviewing a collection for duplicate or identical-content files. The checksum-based approach provides a practical way to narrow down potential clones without manually opening each file.
DySFV is intended for users who regularly handle downloaded archives, backups, or other groups of files and want a straightforward integrity check. SFV documents are commonly distributed alongside file collections, so the utility fits into workflows where those checksum lists are already available. Its focus is verification and clone finding rather than file management or checksum-list creation.
The program is free and open source and requires .NET Framework 3.5. It is designed for Windows, with compatibility information covering Windows XP through Windows 10, including several 64-bit editions. DySFV is a small utility for users who need to check SFV files or compare files by CRC32.