SYSEC WebTools

Local processing · No uploads

Hash Calculator

Input type

MD5 and SHA-1 are unsuitable for digital signatures or collision-sensitive security uses. A matching hash does not establish a trustworthy source.

How to use

Choose text or files and calculate. Copy any digest, or select Verify below it and enter an expected hash to see a match or mismatch immediately. Each digest uses its own algorithm, so no extra selection is needed. Recalculate after changing the input.

Text uses UTF-8; whitespace and line endings affect results. Files run sequentially in chunks; cancel keeps completed results. Algorithm code downloads from this site. Inputs, files and verification values are never uploaded or saved automatically.