📄 File & Document Tools
File Hash Calculator
Calculate SHA-256, SHA-384, or SHA-512 hashes for a local file without uploading it.
Ready to use · Runs in your browser · No signup
How to use the File Hash Calculator
Generate a cryptographic checksum from a local file so you can compare it with a published hash or detect whether file bytes differ.
- Choose a local file and a supported SHA algorithm.
- Fieldlet reads the file bytes in your browser and passes them to Web Crypto.
- Copy the resulting hexadecimal digest and compare it with the expected checksum.
Last reviewed for accuracy:
Common questions
Does a matching hash prove a file is safe?
No. A hash only shows that bytes match another copy or published digest; it does not independently establish that those bytes are trustworthy or malware-free.