Free Windows app · by DYNARQ
Password-protect any Windows app.
TUTUS locks your apps behind a password with SHA-256 security and real-time monitoring — fully offline, and free forever.
Lock any app
Put a password in front of any Windows application — browsers, games, work tools, anything.
SHA-256 secured
Your password is hashed with SHA-256 and stored locally. Nothing ever leaves your device.
Real-time monitoring
TUTUS watches for protected apps launching and steps in instantly to ask for your password.
Auto-start protection
Starts with Windows, so your apps are protected from the moment you boot up.
Lightweight & offline
Tiny footprint, runs quietly in the background, and works completely offline.
Free forever
No accounts, no subscriptions, no ads. TUTUS is genuinely free.
[ How it works ]
Protected in four steps.
Download & install
Grab the installer and set up TUTUS in under a minute.
Choose your apps
Pick any applications you want to lock behind a password.
Set a password
Create a master password — hashed and stored only on your device.
Stay protected
TUTUS runs in the background and blocks unauthorized access automatically.
[ FAQ ]
Good to know.
Is TUTUS really free? +
Yes — 100% free, with no accounts, subscriptions, or ads. No catch.
Is it safe to use? +
Yes. TUTUS works entirely offline, your password is hashed with SHA-256, and nothing is ever sent to us or anyone else.
What if I forget my password? +
Because everything is stored locally and securely, nobody — including us — can recover it. Keep your password somewhere safe.
What are the system requirements? +
TUTUS runs on Windows 10 and Windows 11.
Will it slow down my PC? +
No. TUTUS is a lightweight background app designed to stay out of your way.
Lock it down with TUTUS.
Free, offline, and secure. Download it and protect your apps in under a minute.