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Password, Passphrase & Keygen StudioFree onlineNo sign-upNo upload
Generate Diceware Passphrases, UUIDv7/ULIDs & 2FA TOTP Keys Locally
Generate high-entropy passwords and multi-word passphrases via `crypto.getRandomValues()`, mint time-ordered UUIDv7 and ULID identifiers, decode ULID timestamps, and build `otpauth://` TOTP URIs.
Open the free Password, Passphrase & Keygen Studio
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Password, Passphrase & Keygen Studio — csprng passphrase uuidv7 ulid totp generator
Password & Keygen Studio calculates real Shannon/combinatorial bit entropy in bits and runs strictly offline in browser memory with zero network telemetry.
Quick tip: A 5- or 6-word randomly sampled passphrase exceeds 64–77 bits of entropy while remaining far easier to type than mixed symbols.
Frequently asked questions
How are random characters selected in Password & Keygen Studio?
Using rejection-sampled `window.crypto.getRandomValues()` CSPRNG bytes to eliminate modulo bias.
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