Hash Generator

Create MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes instantly. Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text. All five algorithms at once, uppercase option. Free online hash calculator.

This interactive tool needs JavaScript enabled. All calculations run locally in your browser — nothing is ever uploaded.

This tool runs 100% in your browser. Your input is never sent to any server — you can even go offline after the page loads.

About the Hash Generator

Hashes are one-way fingerprints used to verify downloads, deduplicate files and store password-derived values. Type or paste any text and this generator computes MD5, SHA-1, SHA-256, SHA-384 and SHA-512 simultaneously using your browser's native cryptographic engine, so you can compare across algorithms in one view. Copy any digest in lowercase or uppercase hex — no data ever leaves your machine.

How to use the Hash Generator

Paste or type the text you want to hash.
All five digests are computed as you type.
Toggle uppercase hex if your system needs it.
Copy the digest for the algorithm you need.

Key features

MD5, SHA-1, SHA-256, SHA-384 and SHA-512 in one pass
Native Web Crypto implementation — fast and correct
Lowercase or uppercase hex output
Copy button on every digest

Which hash should I use today?

SHA-256 or better. MD5 and SHA-1 are considered cryptographically broken and should only be used for non-security tasks like checksums on trusted data.

Can a hash be reversed to the original text?

No — hashing is one-way. Identical input always produces the same digest, but the digest cannot mathematically be turned back into the input.

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