Is MD5 or SHA-1 safe to use?

Not for security purposes — both are broken for password storage or digital signatures. They're provided here for checksums and compatibility with older systems that expect them; use SHA-256 or SHA-512 wherever security matters.

Is my text uploaded anywhere?

No — every hash is computed locally using your browser's Web Crypto API (SHA family) or a local implementation (MD5).

Hash Generator

Developer Tools

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text, entirely in your browser.

Text

MD5

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SHA-1

—

SHA-256

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SHA-512

—

What you can do with this tool

Generate a checksum to verify text or a small file wasn't altered
Get a SHA-256 hash for a config or API key comparison

Frequently asked questions

Is MD5 or SHA-1 safe to use?: Not for security purposes — both are broken for password storage or digital signatures. They're provided here for checksums and compatibility with older systems that expect them; use SHA-256 or SHA-512 wherever security matters.
Is my text uploaded anywhere?: No — every hash is computed locally using your browser's Web Crypto API (SHA family) or a local implementation (MD5).

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