Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes for text and files securely in your browser.
Calculated Cryptographic Checksums
How it works
Enter Text or Upload File
Type raw text into the input box or drop any file directly into the dropzone.
Simultaneous Hash Computation
Web Crypto and SparkMD5 compute MD5, SHA-1, SHA-256, and SHA-512 in parallel on your device.
Compare & Copy
Check generated checksums against a known hash to verify file integrity, and copy results with one click.
Frequently Asked Questions
No. The hashing process runs entirely on your device inside your browser using the HTML5 File API and browser Web Crypto. No data is transmitted.
MD5 produces a 128-bit hash and is fast for non-cryptographic checksum verification. SHA-256 produces a 256-bit hash with collision resistance suited for security and cryptographic verification.
Yes, modern browsers can hash multi-megabyte files smoothly. For huge files (hundreds of megabytes), memory depends on available browser RAM.