Calculates SHA-256 and SHA-512 hashes using the Web Crypto API.
Enter text or upload file. Pick algorithm (MD5, SHA-1, SHA-256, SHA-512). Hash appears instantly. Copy.
Hash for file integrity, passwords, signatures. No command-line tools needed.
Fixed-length string from input; same input = same hash; irreversible.
SHA-256 recommended; MD5/SHA-1 weak; SHA-512 strongest.
Generate and compare to expected hash.
No, local processing only.
Browser-based tools like this one have three key advantages over installed alternatives: zero installation (works on any device with a browser), zero cost (no subscription, no in-app purchases), and full privacy (your inputs never leave your device). All calculations run locally in JavaScript, which means they work even if your internet connection drops. You can bookmark the page and come back anytime.
For everyday use, this tool gives accurate results. For professional decisions (tax filing, legal contracts, financial planning), verify the output against a specialist tool or qualified professional. We review and update our tools regularly — calculator bugs are fixed within 48 hours of being reported. If you spot an error, use the "Send Feedback" button in the menu.
If you need a feature this tool doesn't have — bulk processing, file uploads, API access, or team collaboration — let us know via the request form. We prioritize new features based on user demand. Toolzie is built and maintained by a small team, so feature requests get personal attention.
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text with the Toolzie Hash Generator. Hash values are computed locally in your browser — your data never leaves your device.
Hashes verify data integrity, store passwords securely, and create digital fingerprints of files or text.
No — MD5 is considered cryptographically broken and should not be used for password storage. Use SHA-256 or bcrypt instead.
Yes — hash functions are deterministic. The same input always produces the same output hash.
No — all hashing happens locally in your browser. Your text is never transmitted or stored.