Hash Calculator
Enter text, pick algorithms, get the hash – MD5, SHA-1, SHA-256, SHA-384, SHA-512, SHA3-256, SHA3-512 and CRC32. Everything runs locally in your browser.
Result
Enter text and select at least one algorithm.
Everything runs locally in your browser – nothing is uploaded.
Single value or line-by-line
By default the whole input is hashed as one block. Enable "Treat line breaks as separators" to hash each line individually – handy for word lists, password lists, or multiple values at once.
FAQ
Is my input uploaded anywhere?
No. MD5, SHA3 and CRC32 run via small JavaScript implementations, SHA-1/256/384/512 via your browser's native Web Crypto API. Your text never leaves your device.
Are MD5 and SHA-1 still safe to use?
For cryptographic purposes (passwords, signatures) MD5 and SHA-1 are considered broken or outdated. For checksums, cache keys, or compatibility with legacy systems they're still common – for new security-relevant use cases, prefer SHA-256 or higher.