File Checksum Calculator

Calculate MD5, SHA-1, SHA-256, and SHA-512 checksums for any file. Verify file integrity after download. Uses Web Crypto API — files never leave your browser.

Frequently Asked Questions

Is the file uploaded to a server?
No. The file is read and hashed entirely in your browser using the Web Crypto API.
Which hash algorithms are supported?
MD5 (via JS library), SHA-1, SHA-256, and SHA-512.