Simulator & Prank Tools
Fun prank screens, relaxation simulators, and interactive visual experiences. Fake a hacking terminal with realistic code effects, simulate fullscreen OS update screens for Windows, macOS and Linux, generate custom blue screen of death errors, display cracked screen effects, show never-ending download progress bars, mix ambient nature sounds for focus and relaxation, enjoy a cozy animated fireplace, pop virtual bubble wrap, play with fidget spinners and pop-it toys, listen to soothing cat purring, watch Matrix-style digital rain, simulate rain on a window, play with interactive sand physics, admire a hypnotic lava lamp, run a virtual aquarium screensaver, launch fireworks with particle effects, watch northern lights dance, fly through a starfield, observe mesmerizing pendulum waves, and run Conway's Game of Life cellular automaton.
Play soothing cat purring sounds to relax, focus, or sleep. Mix multiple cats with rain, fireplace, and cricket backgrounds, and set a sleep timer.
Simulate realistic OS update screens fullscreen to prank friends. Supports Windows 11, Windows 10, macOS, and Ubuntu with stuck mode, BSOD, and kernel panic effects.
Pop virtual bubble wrap in your browser for instant stress relief, with realistic pop sounds, color and size options, and timed challenges.
Generate a realistic fake Blue Screen of Death to prank friends. Choose Windows 11/10, 8, 7, or XP, pick a stop code, and set an auto-trigger timer.
Simulate a cracked screen to prank your friends. Tap anywhere to create realistic glass crack effects with sound, custom backgrounds, and an auto-crack timer.
Simulate a fake file download that never finishes. Pick a preset filename, set the speed, and watch the progress bar stall near 99% with random error popups.
Fake hacking screen: mash any keys and realistic code streams onto a dark terminal. Switch themes and code sources, paste your own code, and trigger Access Granted popups.
Operate a tower crane in your browser — rotate the boom, move the trolley, control the cable, and deliver crates to target zones across 5 levels.
Interactive virtual abacus with Japanese Soroban and Chinese Suanpan modes. Click beads, see real-time values, and practice with quiz challenges.
Explore gyroscope physics in interactive 3D. Adjust spin, tilt, mass, and friction to watch precession and nutation unfold in real time.
Build a virtual Japanese zen garden online: rake sand into flowing patterns and place stones, bonsai, lanterns, and cherry blossom.
Draw on a canvas and watch your strokes mirror into symmetric, mandala-like patterns. Adjust segments, palettes, brush, and mirror, or let auto-draw create them.