What does Hash Calculator actually do?

The hash calculator digests the text you type with MD5, SHA-1, SHA-256, SHA-512, or Blake3. The same text and algorithm always produce the same digest. You cannot turn the digest back into the text. MD5 and SHA-1 are not safe for passwords or signatures.

Can I reverse a hash back into the original password?

Hashes are one-way by design. This tool generates digests — it cannot recover the original input from a hash.

Is my text uploaded when hashing?

No. Digests are computed in your browser.

Which algorithms are available?

Common options include MD5, SHA-1, SHA-256, SHA-512, and Blake3 — see the tool UI for the full list.

Hash Calculator

Generate MD5, SHA-1, SHA-256, SHA-512 and Blake3 hashes from text. Free online — runs locally, no upload.

Input

Uppercase

MD5—

SHA-1—

SHA-256—

SHA-512—

Blake3—

SHA3-256—

SHA3-512—

RIPEMD-160—

MD5

bits

SHA-1

bits

SHA-256

bits

SHA-512

bits

Blake3

bits

SHA3-256

bits

SHA3-512

bits

RIPEMD-160

bits

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Hash Calculator