Checksum Verifier

Sites publish a checksum next to a download so users can confirm the file arrived intact and hasn't been tampered with. This tool hashes your file and compares it against the expected value, detecting the algorithm automatically.

How to use it

• Pick a file or paste text, then paste the expected hash published by the source.
• The tool auto-detects the algorithm from the hash's length among the 13 it supports (MD5, SHA-1, SHA-256, and others) and shows whether the result matches.
• If the algorithm is known ahead of time, you can select it manually for a more precise check.

Common uses

• Verifying an ISO image or installer after downloading it, before burning it to media.
• Confirming an archive of important data survived a network transfer intact.
• Cross-checking a package manager's checksum against the one the developer published.

Things to keep in mind

A checksum check protects against accidental corruption and confirms file integrity, but it doesn't guarantee the original itself wasn't compromised at the source — that requires a digital signature.

If the checksum doesn't match, re-download the file first: the most common cause is corruption in transit, not tampering.