Crypto

Hash Generator

Compute a SHA digest for a text fixture and compare exact inputs, including whitespace and line endings.

Local processing

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About this tool

When to use it

Compute a SHA digest for a text fixture and compare exact inputs, including whitespace and line endings.

How to use it

Choose SHA-256, SHA-384, or SHA-512, paste the text, and select Generate hash. Compare the hexadecimal digest with a trusted expected value. Recompute after changing the input or algorithm.

Guide updated 2026-09-15. Examples checked against this implementation.

Worked examples

SHA-256 of a small known fixture

Input

abc; Algorithm: SHA-256

Expected output

ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad

This fixture contains exactly three characters and no final newline. Adding a newline changes the digest.

Errors and unsupported input

The digest differs from a file checksum

Check encoding, newline bytes, and whether the other tool hashes file bytes rather than copied text. This workspace hashes UTF-8 text.

Continue this workflow

HMAC Generator: Create a keyed message authentication code instead of a plain digest.

Questions

Frequently asked questions

Can I decrypt a SHA digest?

Hashing is not reversible encryption. A digest can be compared with candidate inputs, which is why plain SHA is unsuitable for password storage.