Fake Lock Screen Generator

Display a realistic Windows, macOS, ChromeOS or Linux lock screen with custom username and wallpaper. Fake password rejection animation, live clock, full-screen prank mode. Free in your browser, ESC to exit any time.

Lock Screen Settings

Operating System Style

Windows 11

Modern blue

Windows 10

Classic Win lock

macOS Ventura

Latest Apple

macOS Big Sur

Glass blur

ChromeOS

Chromebook

Linux GDM

Ubuntu/GNOME

Wallpaper

User Identity

Username

Avatar Emoji

Prank Options

Fake Password RejectionField shakes and shows "Incorrect password" Live ClockShow real-time clock and date "Just Kidding" RevealFriendly reveal screen on exit Hold ESC to ExitRequire holding ESC for 1 second

Schedule Start

Delay before the lock screen appears

Tips for Best Results

Match the OS style to the actual computer for realism
Use the target's real name for maximum effect
Press F11 first for true fullscreen
Press Esc to exit the lock screen
Schedule a delay to step away first
Click Share Link to send your prank setup

6 OS Styles

Windows 10, 11, macOS Big Sur, Ventura, ChromeOS, Linux GDM

12 Wallpapers

Bliss, Mountain, Ocean, Sunset, Forest, Aurora, and more

100% Safe

No real lock, no input captured, ESC always exits

This is a free, browser-based fake lock screen prank tool that displays a convincing Windows, macOS, ChromeOS or Linux login screen with custom username, avatar emoji and wallpaper. The clock updates in real time, and when someone types into the password field, the prank shakes the input and shows an "Incorrect password" message - exactly like the real thing.

Six operating system styles are included: Windows 11, Windows 10, macOS Ventura, macOS Big Sur, ChromeOS, and Linux GDM (Ubuntu/GNOME). Each uses authentic typography, button shapes, blur effects and color palettes to match what real users expect.

Press Esc at any time to exit. Nothing is actually locked, nothing is installed, and any text typed into the fake password field is discarded - never saved or transmitted.

1. Pick an OS style - Match the lock screen to the operating system actually running on the computer for maximum realism.

2. Choose a wallpaper - 12 preset gradients matching common stock wallpapers, plus solid colors.

3. Set the username and avatar - Use the target's real name and pick an emoji that matches their actual profile picture.

4. Toggle prank options - Enable the fake password rejection (recommended), the live clock, the "Just Kidding" reveal, and hold-ESC-to-exit safety.

5. Schedule the start delay - Set 10-30 seconds so you can step away before the lock kicks in.

6. Go fullscreen and start - Click Enter Fullscreen, then Lock Screen. Press Esc when the joke is over.

Office Pranks

"Lock" a coworker's screen while they grab coffee.

April Fools'

A classic that never fails when paired with their real name.

YouTube Skits

Realistic lock screens for tech-themed comedy videos.

Film Production

Quick screen overlays for scenes that need a believable lock.

Mockup Screenshots

Generate believable lock screen mockups for blog posts.

UX Design Demos

Compare lock screen patterns across operating systems.

Yes. The tool only displays a fake lock screen inside your browser tab. It does not actually lock the computer, change settings, or capture any input. Press Esc to exit.

No. This is purely a visual prank - the screen looks locked but the computer is not. Esc always exits. Use only with people who can take a joke.

No. Whatever someone types into the fake password field is intercepted by the prank, immediately replaced with dots, and discarded. Nothing is saved or transmitted anywhere.

Press the Esc key once. On mobile, tap the screen and the exit hint appears. If "Hold ESC to Exit" is enabled, hold the key for one second.

Yes. Set any username, pick an emoji avatar, choose from preset wallpapers or use a solid color. The clock shows live time.

Yes. The tool runs on iOS Safari, Android Chrome, and any modern mobile browser. Tap the screen during the prank to reveal the exit hint.

Yes. After the user types and presses Enter, the fake field shakes, shows an "Incorrect password" error, and clears - just like the real lock screens it imitates.

Yes. Click the Share Link button to copy a URL containing all your current settings. Anyone who opens the link sees the same configuration ready to start.

Pair this with our Fake Windows Update for a stuck-update follow-up, or with the Fake Virus Scanner for a "system compromised" continuation.

Generate matching error dialogs with the Fake Error Message Generator.

Record reactions with ScreenToGif.