Free Online Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes in real-time. All processing in your browser.

Input Text
Length: 0 chars Bytes (UTF-8): 0
MD5
128-bit
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SHA-1
160-bit
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SHA-256
256-bit
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SHA-512
512-bit
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How to Use This Hash Generator

Type or paste text above and all four hash values update instantly. SHA-256 and SHA-512 use the browser's native Web Crypto API. MD5 uses a JavaScript implementation.

What is a hash?

A hash is a fixed-length string generated from input data. It's a one-way function — you can't reverse a hash back to the original text.

Is MD5 still safe to use?

MD5 is not collision-resistant and shouldn't be used for security. It's fine for checksums and non-security uses. Use SHA-256 or SHA-512 for security.

Which hash should I use?

SHA-256 is the most common choice for general purpose hashing. SHA-512 is stronger but produces longer output. SHA-1 is deprecated for security.

Is my data secure?

Yes. SHA hashes are computed via the Web Crypto API in your browser. No text is sent to any server.