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Two privacy & security tools, side-by-side. See which fits your task.
Privacy & Security
HMAC-SHA3-256 signing — message + key, copyable output.
Open sha3-256 HMACPrivacy & Security
Generate SHA3-256 hash of any text. Instant, browser-side, copy output.
Open sha3-256 textYour specific task is hmac-sha3-256 signing — message + key, copyable output. Open the page, drop your input, get the result — typically under a second.
Your goal is generate sha3-256 hash of any text. Same approach: paste in, get the result, move on. No account, no upload.
Both tools live in the same category, so the choice depends on the exact subtask. sha3-256 HMAC focuses on hmac-sha3-256 signing — message + key, copyable output; sha3-256 text focuses on generate sha3-256 hash of any text. Try whichever description matches your goal more closely — they're both free.
Yes — both tools are free for unlimited personal use. The Pro plan unlocks higher limits and batch features but the core functionality stays free forever.
Absolutely. Many users chain multiple tools together — process a file with one, then feed the result into another. Nothing is uploaded, so chaining is essentially instant.
No. Both sha3-256 HMAC and sha3-256 text work without signup. We only ask for an email if you decide to subscribe to a paid plan.