PASSWORD & KEY GENERATOR
KEY-REX
Tiny arms. Massive entropy.
Everything is generated in your browser with crypto.getRandomValues().
Nothing is transmitted, nothing is stored on disk, nothing is logged.
Memorable phrase
adjective + nounShort enough to type from memory, long enough to survive a rate-limited login.
Random characters
csprngUniform draws from the selected character set. No patterns, no memorability.
Diceware passphrase
eff large · 7776 words · 12.9 bits/wordThe EFF long wordlist, drawn uniformly. Six words beats almost every password a human invents.
Build from parts
modularCompose a structure, then fill it. Entropy is summed per part and shown below.
ADD PARTS
STRUCTURE
Key material
aes · jwtRaw bytes from the CSPRNG, encoded for transport. This is key material, not a password — treat it accordingly.
Strength checker
never leaves the tabTyped characters are analysed in memory and never stored, logged, or sent anywhere.
COMPOSITION
TIME TO CRACK
| Scenario | Assumes | Expected time |
|---|
Expected averages over half the search space, brute force only. A password that appears in a breach corpus falls instantly regardless of these numbers.
OBSERVATIONS
01Recent output
Held in memory for this tab only. A refresh clears it, and nothing is written to disk — close the tab and it is gone.