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File Checksum
Calculate MD5 and SHA checksums for files
Last updated:Drop a file here or click to select
Your file stays on your device — never uploaded
Frequently Asked Questions
What is a file checksum?
A checksum is a hash value computed from a file's contents. If even one byte changes, the checksum changes completely, making it ideal for verifying file integrity.
Which checksum algorithm should I use for file verification?
SHA-256 is recommended for file verification. It is secure, widely used, and supported by most download pages and package managers.
Do I need to upload my file to generate a checksum?
No. The checksum is computed entirely in your browser using the Web Crypto API. Your file never leaves your device.