Hash text or a file
…………Hashing runs on your device. MD5 and SHA-1 are shown for checksums and legacy comparisons - use SHA-256 or stronger for anything security-related.
HMAC
…Computed locally - the key never leaves your browser.
UUID v4
Password generator
Generated with your browser's cryptographic randomness and never transmitted. Ambiguous characters (l, 1, O, 0) are excluded.
Frequently asked questions
Is it safe to generate passwords in a browser tool?
Here, yes: passwords come from your browser's cryptographic random number generator and are never transmitted, stored, or logged. Generate, copy, and close the page - no trace remains.
How do I verify a downloaded file's checksum?
Click "Hash a file", pick the download, and compare the SHA-256 line against the checksum the site published. If they match character for character, the file was not corrupted or tampered with in transit.
Why is MD5 still offered if it's broken?
MD5 is cryptographically broken for signatures and passwords, but it remains common for file integrity checks and legacy system compatibility. Use it to compare checksums; use SHA-256 or SHA-512 for anything security-related.