Check SFV files in your browser
The list of CRC32s that comes with releases in parts and with files on Usenet. Drop it with its files right here to see they're whole. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your list opens with each file it names checked against the files dropped with it.
- CRC32, MD5, SHA-1, SHA-256 and SHA-512
- Matches, doesn't match, or not dropped
- Worked out on your device • Nothing uploaded
- Every name and hash, and the comments
About SFV
SFV, Simple File Verification, comes with sets of files that travel together: a release in RAR parts, an album's tracks, a posting on Usenet. Its CRC32 for each file tells whether the file came through whole, and tools like QuickSFV, RapidCRC and TeraCopy check them.
An SFV is text: comment lines that start with a semicolon, often naming the tool that made it, then a line for each file with its name and its CRC32 in 8 hex digits. A CRC32 finds damage in a download, but it's no guard against a file changed on purpose, which SHA-256 is made for.
Filepeek reads the list and works out the CRC32 of each file dropped with it, on your device, then marks each one: it matches, it doesn't, or it wasn't dropped. Every name and CRC32 shows in the list, with the comments.
Simple File Verification
.sfv
Format
- MIME type
- text/x-sfv
- Made by
- Release groups and Usenet
Inside the file
- Holds
- A CRC32 for each file
- Each line
- A name and 8 hex digits
- Comments
- Lines after a semicolon
- Markup
- Plain text
Opens in every browser
Filepeek checks SFV files in Chrome, Edge, Firefox and Safari. On their own, browsers download them or show them as text.
- YouChromeChecks through Filepeek
- YouEdgeChecks through Filepeek
- YouFirefoxChecks through Filepeek
- YouSafariChecks through Filepeek
Apps that open SFV
- WindowsQuickSFV, RapidCRC Unicode and TeraCopy
- Maccksfv in Terminal, from Homebrew
- iPhone and iPadNo app checks it
- AndroidFew apps check it
Questions
How do I check an SFV?
Drop the .sfv together with the files it names, or choose Peek an SFV and pick them all. Each file is checked against its CRC32, and the card says which match.
What does it mean when a file doesn't match?
Its bytes aren't the ones the SFV was made from: the download was cut short or damaged, or it's another file with the same name. Download it again.
Are my files uploaded to check them?
No. Their CRC32s are worked out on your device, and the files never leave it.