SHA Hash Generator
A hash gives a fixed-length fingerprint of a sequence of bytes. This tool encodes your text as UTF-8 and uses the browser Web Crypto API to calculate SHA-256, SHA-384 or SHA-512. The result is lowercase hexadecimal. Use it to compare known text samples or reproduce a digest used in a development workflow. Hashing is not encryption: there is no decryption key, and a digest is not a reversible container for the original text. Different algorithms produce different digest lengths; choose the one specified by the system you are testing.
Your workspace
Runs locally in your browserResult
Your input is processed locally in your browser unless explicitly stated otherwise. Inputs are not saved by this tool.
How to use this tool
Enter text, choose a SHA algorithm and generate the digest. Copy the hexadecimal result; clear removes the input and result.
Example
Input
abcOutput
ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015adWhat does this tool do?
Every byte matters. A trailing newline, a different letter case or a visually similar Unicode sequence can produce a different digest. The tool does not trim or normalize the input. Empty text is allowed and has a defined digest. To compare with another program, ensure both programs use UTF-8 and exactly the same line endings.
Common mistakes and limitations
SHA-256 produces 64 hexadecimal characters, SHA-384 produces 96 and SHA-512 produces 128. A digest alone does not authenticate the sender: someone who can replace both a file and its published checksum can make them agree. This text tool does not calculate file hashes, HMACs, digital signatures or password-storage hashes.
Frequently asked questions
Can this reverse a SHA digest?
No. It calculates forward digests only; it does not recover source text or search guesses.
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