Secure Hex Key Generator

Generate secure random hex keys in your browser (openssl rand -hex replacement). Private: nothing is saved or sent.

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Secure Hex Key Generator

Browser replacement for openssl rand -hex 32. No OpenSSL install needed on Windows.

Private by design.

Generated only on your computer with crypto.getRandomValues.
Nothing is stored: no DB, no cookies, no logs. Refresh erases it.
Copy it now. If you lose it, it cannot be recovered.

Bytes (like the number in openssl rand -hex N)

32 bytes = 64 hex characters = 256 bits of randomness.

Quick presets

How many keys

Letter case

openssl rand -hex 32-- this setting equals that command

Your key — copy now, we keep no copy

Keys erased from this page.

Nothing was stored anywhere.

Why you can trust this

Runs 100% in your browser tab. No requests carry your key.
Uses crypto.getRandomValues, the browser secure RNG.
No account, no save button. Nowhere for the key to go.

What openssl rand -hex does

openssl rand -hex 32 = 32 random bytes as 64 hex chars.
Windows has no openssl by default. This gives same output.
Uses: SECRET_KEY values, API secrets, salts, IVs.

Save it manually: we do not save your key. Copy it to a password manager before leaving. Treat it like a password.

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Frequently Asked Questions

No. The key is generated only on your computer using crypto.getRandomValues. Nothing is stored, logged, or transmitted. Refreshing the page erases it forever — copy it now.

openssl rand -hex 32 outputs 32 random bytes as 64 hex characters. This tool does exactly the same, using your browser secure random generator — no OpenSSL install needed on Windows.

App SECRET_KEY values, API secrets, encryption salts and IVs, password-reset tokens, and any place you need unpredictable random bytes in hex form.

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