Checksum Verifier
5 toolsVerify a downloaded file's checksum against an expected value.
Runs in your browser — your files and text stay on your device
A complete hashing toolkit — generate MD5, SHA-1/256/512, SHA3-256, and CRC32 digests of text or files, compute HMACs for signing requests, hash and check bcrypt passwords, and verify a downloaded file's checksum. Everything runs locally using the Web Crypto API wherever possible.
How to use this tool
- 1Choose a file and the algorithm the publisher used.
- 2Paste the checksum they published.
- 3A pass/fail result tells you if the file matches.
Frequently asked questions
Why verify a checksum?
To confirm a downloaded file wasn't corrupted in transit or tampered with, by comparing it against the value the publisher provided.
Is my file uploaded anywhere?
No — hashing happens entirely in your browser.