Hash Comparator
Compare two hash values live — auto-detects the algorithm per side, normalises case/whitespace, and points to the first differing character.
About this ToolHow it works, benefits & use casesTap to collapse
Drop two hash values side by side and this comparator tells you instantly whether they match — no button-mashing required, since the verdict updates live as you type. Before comparing, each side is normalised: surrounding whitespace plus internal spaces, colons and hyphens are stripped, and by default everything is lower-cased so a hash pasted in upper-case still matches its lower-case twin. A coloured banner shows "Hashes match" or "Hashes do not match", and when they differ it points to the exact character position of the first difference. Each input is also fingerprinted independently: the tool detects the likely algorithm from the digest length (MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512), recognises bcrypt, argon2 and salted/colon-separated formats, and reports the character count — warning you when the two sides look like different algorithms. Flip on case-sensitive comparison when case matters. The comparison runs entirely in your browser and can be shared via URL.
How to Use
- 1Paste the first hash into the "First hash" box (or click "Load example" to fill both sides with a sample MD5).
- 2Paste the second hash into the "Second hash" box — the match verdict appears the moment both fields have a value.
- 3Read the banner: green for a match, red with the first differing character position when they do not match.
- 4Check the per-side detection line under each box (algorithm, format and length) and watch for the "differs from first" warning.
- 5Toggle "Case-sensitive comparison" if upper/lower case should be treated as distinct, then copy the page URL to share the comparison.
Key Benefits
- Live match/no-match verdict that updates as you type
- Normalises whitespace, colons and hyphens so formatting differences do not cause false mismatches
- Case-insensitive by default, with a case-sensitive toggle when you need it
- Pinpoints the position of the first differing character on a mismatch
- Auto-detects the algorithm per side from digest length, plus bcrypt and argon2 formats
- Warns when the two values appear to be different algorithms
- Runs in-browser and the comparison is shareable via URL
Common Use Cases
- Verifying a downloaded file's checksum against the value published by the source
- Confirming a freshly computed hash matches one stored in a database or config
- Checking that a hash copied from logs or a terminal matches an expected reference
- Spotting where two near-identical hashes diverge during debugging
- Quickly identifying which algorithm produced an unfamiliar hash by its length
By default hashes are lower-cased before comparing.
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By default, no. Both hashes are trimmed and have spaces, colons and hyphens removed, then lower-cased before comparison, so an upper-case hash will still match its lower-case equivalent. Enable "Case-sensitive comparison" if you need upper and lower case to be treated as different.
It infers the algorithm from the normalised length: 32 hex chars is MD5, 40 is SHA-1, 56 is SHA-224, 64 is SHA-256, 96 is SHA-384 and 128 is SHA-512. It also recognises structured formats — bcrypt ($2a/$2b/$2y), argon2, and colon-separated salted hashes such as PBKDF2.