Generate SHA-1, SHA-256, SHA-384, and SHA-512 cryptographic hashes? from text or files. Hex or Base64 output. Nothing leaves your browser.
A hash is like a fingerprint for a file or a piece of text: feed in the same thing and you get the same short code every time — change a single letter and the code comes out completely different.
People use them to check a download arrived intact, to confirm two copies of a file are truly identical, or when IT or a vendor asks you to “verify the checksum”. Drop your file or paste your text here — nothing is uploaded anywhere.