Fast File Validator (FFV) is a program for verifying files against a checksum file and for creating such checksum files. FFV supports both SFV files (which use the CRC32 algorithm) and MD5 files. "Checksum" is meant in the generic sense here. Technically, neither CRC32 nor MD5 is really a checksum.
| Tags | Utilities |
|---|---|
| Licenses | GPL |
| Operating Systems | Windows Windows Windows Windows POSIX Linux |
| Implementation | C++ |
Recent releases


Changes: The exit status now reflects the comparison results.


Changes: The new "--relative" option tells FFV to look for the files relative to the checksum file. This is useful when the checksum file is stored along with the files to be checked, and you want to validate several checksum files in different directories.


Changes: The main change in this version is the addition of a test suite. The --allow-errors option is now implemented on POSIX systems.


Changes: This release improves support for systems that don't use GNU libc (like Solaris).