File Hash (MD5 / SHA-1 / SHA-256)
Compute file checksums (MD5, SHA-1, SHA-256) to verify downloads, compare files, and validate integrity. Hashing runs locally in your browser.
How to use
- Choose a file using the file picker.
- Wait for the hashes to compute (MD5 / SHA-1 / SHA-256).
- Copy the checksum you need and compare it with the expected value.
- If the hash differs, the file may be corrupted or tampered with.
FAQ
Is the file uploaded anywhere?
No. The file is processed locally in your browser; it is not uploaded.
Which hash should I use for file integrity?
SHA-256 is a good modern default for integrity checks. Avoid MD5/SHA-1 for security-sensitive verification.
Why is hashing large files slow?
Hashing reads the entire file. Performance depends on file size and your device.