Integrity check

Fingerprint a file. Keep it local.

Calculate a SHA-256 digest in your browser, then compare it with a hash you trust. Useful for learning how file integrity checks work.

Hash a file

Choose a file or drop it below. The file is read locally and never uploaded.

Drop a file here

Any file type · Maximum 50 MB

Optional: compare with an expected SHA-256

Choose a file to calculate its hash.

Hash text

Calculate the SHA-256 digest of text without creating a file.

Text to hash

Text SHA-256

A matching SHA-256 hash indicates the contents match the expected digest. It does not prove who created the file or whether the source is trustworthy.