Security & Crypto Tools
SHA-3 Hash Generator
Generate SHA3-256 and SHA3-512 hashes of text or files.
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What is SHA-3?
A SHA-3 hash generator. Because the Web Crypto API doesn't expose SHA-3, this tool uses a bundled JS implementation to compute SHA3-256/SHA3-512 digests.
How it works
Digests are computed with js-sha3 (pure JS), with uppercase/lowercase output and copy-to-clipboard.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Modern hashing
Hash a message with SHA3-256, SHA3-384, or SHA3-512 — the newer Keccak-based family.
Common mistakes
SHA-3 is not SHA-2
SHA3-256 and SHA-256 are different algorithms producing different digests for the same input.
Frequently asked questions
How does SHA-3 differ from SHA-2?
SHA-3 uses the Keccak sponge construction, which avoids the length-extension weaknesses of Merkle–Damgård designs.
Is SHA-3 widely supported?
Modern browsers expose it through Web Crypto, and most languages and libraries include it.