File Checksum
Calculate a file SHA checksum locally without uploading it to a server.
Drop a file here or choose oneMax. 50 MB · The file is processed locally
Your data is processed locally in your browser.
Check files with SHA
A checksum helps compare whether two files contain the same bytes. Use the same algorithm on both sides when comparing results.
Important considerations
The browser reads the complete file into memory, so this version limits files to 50 MB. Files are not uploaded.
Processing happens locally in your browser.
Explore all web development tools