Cryptographic Checksum Hash Generator
Generate and compare multiple cryptographic hash checksums (MD5, SHA-1, SHA-256, SHA-512) for text and large files locally.
🔒 Processed entirely in your browser — nothing you enter here is ever uploaded.
The result appears on this page after you run the tool. Nothing you enter is uploaded.
Result
About this tool
Verify file integrity and generate cryptographic signatures offline. Our Hash Generator computes checksums for plain text and binary files directly in your web browser.
By utilizing progressive chunk-by-chunk FileReader streaming, you can load files up to 2GB in size without causing your browser tab to lag or run out of memory. MD5, SHA-1, SHA-256, and SHA-512 are derived in parallel.
Paste an expected hash into the verifier box to automatically trace matching character sequences, highlighting any mismatch indices in soft red to quickly catch corrupt downloads.
Example. The UTF-8 text hello has SHA-256 digest 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824.
Limit. The algorithms computed are MD5, SHA-1, SHA-256, and SHA-512; SHA-3 is not among them.