File Checksum
Prove a file is exactly what you expect — all hashing happens on your device.
File Checksum
Compute SHA-1, SHA-256, and SHA-512 of any file. All hashing runs locally — the file never leaves your device.
Result
Hashes will appear here.
Why compute a file checksum?
A checksum is a short fingerprint of a file. If two files produce the same hash, they are byte-for-byte identical. Compare the hash here against one published by a download page to confirm the file was not corrupted or tampered with in transit.
Which hash should I use to verify a download?
SHA-256 is the standard for verifying downloads — it is collision-resistant and widely published by software vendors. SHA-1 is legacy and should only be used for compatibility; SHA-512 adds margin on 64-bit systems.
My hash does not match the published one — what now?
A mismatch means the file changed in transit or the source is wrong. Re-download from the official page, confirm you grabbed the exact same file (not a different version), and compare again. Never trust a file whose hash differs from the publisher’s.