File Checksum
Calculate MD5, SHA-1, and SHA-256 checksums of files to verify integrity.
Upload File
Select a file to calculate its checksums
Click to upload or drag and drop
Any file type supported • Max file size depends on browser
About Checksums
A checksum is a fixed-size string of characters derived from data (like a file) using a mathematical algorithm. It's used to verify data integrity and detect accidental changes or corruption.
Supported Algorithms:
- SHA-256: Most secure, widely used standard (recommended)
- SHA-1: Older standard, still commonly used
- MD5: Fast but less secure, suitable for basic integrity checks