Can I use these hashes to store passwords?

No. They are fast by design, which makes brute forcing easy. Use Argon2id, scrypt or bcrypt on the server.

Why is MD5 still offered?

Many download pages and legacy systems still publish MD5 checksums. It is fine for spotting accidental corruption but not for security.

Is my data sent to a server?

No. Everything is processed in your browser, which matters when the input is a production payload, token or query. Nothing is uploaded, logged or stored.

Hash Generator - Free Online Tool

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Compute MD5, SHA-1, SHA-256, SHA-384 and SHA-512 digests and HMACs of text.