SFV File Creator
Create an interoperable UTF-8 SFV manifest from local files using CRC-32/ISO-HDLC.
0 / 20 files (0 B / 250 MB)
How to use
Select files to calculate uppercase eight-digit CRC-32 values. The downloaded manifest uses UTF-8, LF line endings, and one safe filename and checksum per line.
Example
Input
abc.txt containing exactly abc
Output
abc.txt 352441C2
Limitations
Uses the same limits as file hashing: 100 MiB per file, 20 files, and 250 MiB total. Unsafe or ambiguous filenames are rejected. SFV checks accidental corruption, not authenticity.
Frequently Asked Questions
Which CRC does SFV use?
This tool uses CRC-32/ISO-HDLC and writes exactly eight uppercase hexadecimal digits.
Can an SFV prove a file is trusted?
No. Anyone who changes a file can also replace its CRC. Obtain trusted digests or signatures separately.