What is a hash?
A cryptographic hash function turns input data into a fixed-length string called a digest. A small change to the input produces a substantially different digest.
This tool uses the browser's Web Crypto API, so the text you enter is processed locally rather than sent to Layer Eight Tools.
Which algorithm should I use?
SHA-256 and SHA-512 are common modern choices. SHA-1 is included for compatibility and legacy checks but should not be used for new security designs where collision resistance matters.