Radar Screen
The radar screen is a full-screen animated military-style tactical HUD — a sweeping radar arc, live contact blips, a scrolling alert log and readouts ticking over in real time. It isn't a prank: it's an ambient "command centre" display for a desk monitor, a stream background, or a prop screen in a video.
Nothing on it is real, which is exactly what makes it useful — you can point a camera at it or capture the tab without clearing any data. In the same ambience family: Matrix code rain for the falling-green look and the DVD screensaver for pure nostalgia. Want a screen that actually fools someone? Use the hacker screen.
Press F11 for maximum realism. Tap or press Esc to exit.
Add the prank to their home screen and it runs like a real app — no browser bar, no tabs, no URL, nothing to give it away.
How to use the radar screen prank
- Tap Launch Full-Screen Prank above (or press F11 once it's running).
- Leave the device where your victim will find it. It'll look completely real.
- When they panic, tap the screen or press Esc to reveal it was a joke.
For laughs only. Nothing here installs, downloads or damages anything — it's all harmless CSS/JS in the browser. It's a staple of April Fools' Day pranks and works any day of the year. Just keep it kind — see what makes a good prank.
Frequently asked questions
Is the radar screen tracking anything real?
No. Every contact, bearing, alert and readout is simulated — it's a canvas animation running in your browser with no connection to any radar, flight feed, GPS or data source of any kind. It never asks for your location.
Can I use it as a stream or desk background?
Yes. Go fullscreen and screen-capture the tab for OBS, or leave it running on a second monitor as an ambient "command centre" display. It runs indefinitely and never needs resetting.
Can I use it as a prop in a film or video?
That's one of the main reasons it exists. Point a camera at the screen or capture it directly for a control-room shot — the sweeping arc, ticking readouts and scrolling alert log all move on their own, so it holds up on camera without editing.
Do the blips and alerts follow a pattern?
They're generated with variation rather than looping a fixed sequence, so contacts appear at different bearings and the log fills with different entries. That matters on camera, where an obvious repeat is what gives a fake display away.
Is this a prank?
Not really — there's no punchline or reveal. It's an ambience and prop tool, the same category as the DVD screensaver and Matrix code rain. If you want something that actually fools someone, the hacker screen is the one you want.
Will it work on a TV or big display?
Yes — it scales to fill any screen, so it works over HDMI on a TV or a large monitor. Bigger is genuinely better here, since the readouts and sweep are the point.
Does it work on a phone or tablet?
It loads and scales, but the HUD is laid out for a wide screen, so a tablet in landscape is the smallest size where it still looks right.
Does it use a lot of battery?
More than a static page, since it animates continuously — treat it like leaving a video playing. On a desktop or a plugged-in laptop that's a non-issue.