Why is MD5 not available?

The browser's SubtleCrypto API does not implement MD5 because it is cryptographically broken; use SHA-256 or SHA-512 instead.

Can hashes be reversed back to the original text?

No, cryptographic hashes are one-way — the same input always produces the same hash, but the hash cannot be turned back into the input.

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Hash Generator

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Hash Generator

Generate SHA-1, SHA-256 or SHA-512 hashes of text.

Use tool ↓

MD5 is not offered here — the browser's Web Crypto API does not implement it because MD5 is cryptographically broken. Use SHA-256 or SHA-512 for anything security-sensitive.

Text to hash

About this tool

Compute a cryptographic hash of any text using the browser's native Web Crypto API. Choose between SHA-1, SHA-256 and SHA-512; the hexadecimal digest is shown and can be copied with one click. MD5 is not offered because the Web Crypto standard does not implement it — MD5 is considered cryptographically broken.

Examples

SHA-256 of "hello" → "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"

Frequently asked questions

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