File checksum checker

Is this download the file it says it is? Drop it here and paste the checksum the download page gives.

Drop files here, or tap to choose. Any size: a 20 GB image is read in pieces.

The checksum you were given (SHA-256, MD5, SHA-1 or SHA-512)

Or paste a whole SHA256SUMS list

Also work out: MD5 SHA-1 SHA-512

The SHA-256 of a text

Every sum is worked out in this browser. The file is read on this device and never uploaded, so this works offline and on private files.

Made from the lab's sealed experiments, which hashed their own state with SHA-256; this hashes your file, which is what the sum is for. More from the lab