Rapto generates truly random, entropy-rich passwords entirely on your device. Zero internet. Zero data sent. Zero compromise.
Every detail engineered to produce passwords that are both genuinely strong and practically usable.
Passwords are built with a cryptographically seeded Fisher-Yates shuffle — not the weak pseudo-random generators found in most tools. Every character is genuinely unpredictable.
See exactly how strong your password is in bits of entropy. Rapto calculates crack-time estimates at 10 billion guesses per second so you know precisely what you're working with.
Choose length from 6 to 64 characters. Toggle uppercase, lowercase, numbers, and symbols independently. Exclude ambiguous characters (0, O, 1, l, I) for easier transcription.
Save up to 200 passwords to an encrypted local vault. Mask or reveal them on demand. Copy instantly. Delete individually or clear everything. Your vault never leaves your device.
Every character type is displayed in a distinct colour — uppercase in violet, numbers in cyan, symbols in amber, lowercase in white — making patterns instantly visible at a glance.
No network permission is requested. No SDK phoning home. No analytics. No crash reporters. The app generates and stores everything locally. Your security is air-gapped by design.
Set the password length between 6 and 64 characters. Toggle which character types to include. Enable ambiguous character exclusion for passwords you'll need to type manually.
Tap generate and Rapto builds a password by guaranteeing one character from each active pool, filling the rest randomly, then applying a Fisher-Yates shuffle. No patterns. No bias.
See your password's entropy in bits and estimated crack time displayed immediately. The four-segment strength bar and colour-coded characters give instant visual feedback.
Copy directly to clipboard or save to your local vault for later. Saved passwords are masked by default, revealable with a tap, and never transmitted anywhere.
Rapto calculates entropy in bits — the true mathematical measure of password strength — and shows you how long it would take an attacker running 10 billion guesses per second to crack it.
A 128-bit password would take longer than the age of the universe to crack by brute force. Rapto shows you exactly where you stand.
Rapto requests zero permissions beyond vibration for haptic feedback. No camera. No contacts. No location. No microphone. The app has no way to exfiltrate your passwords even if it wanted to.
Free. Offline. No strings attached. Generate as many passwords as you need, forever.