OS Screen Simulations Tools
Visual-only simulations of system screens for presentations, training material, film and video production and harmless demonstrations. Choose a Windows 10-style or Windows 11-style error screen, a macOS-style restart screen, update and loading scenes, a warning or crash scene, or build a custom error dialog image. Every scene carries the label “SIMULATION — NOT A REAL SYSTEM ERROR”, starts only when you press Start, can be paused, replayed or exited at any time, and never asks for passwords, phone calls or payments. This site is not affiliated with Microsoft or Apple.
8 OS Screen Simulations Tools
Most popular first.
- Windows 10-Style Error SimLabelled blue stop-screen simulation for demos.Open Tool
- Windows 11-Style Error SimLabelled dark stop-screen simulation with progress.Open Tool
- macOS-Style Error SimLabelled restart-message and restart-progress scenes.Open Tool
- System Update SimulatorLabelled update-progress scene, Windows- or macOS-style.Open Tool
- Loading Screen SimulatorSpinner and progress-bar loading scenes.Open Tool
- Error Dialog GeneratorMake a labelled error-dialog image and export PNG.Open Tool
- App Crash SimulatorLabelled “application stopped responding” scene.Open Tool
- Warning Scene SimulatorLabelled generic warning screen for demos.Open Tool
Frequently Asked Questions
What can I do with these OS Screen Simulations tools?
Clearly labelled Windows-style and macOS-style screen simulations.
Which OS Screen Simulations tools are most popular?
The most used are Windows 10-Style Error Screen Simulator, Windows 11-Style Error Screen Simulator, macOS-Style Error Screen Simulator. Tools are listed here in order of popularity.
Do I need to install anything or sign up?
No. Each tool opens in your browser, works without an account and is free to use. Files and text are processed on your device unless a tool clearly states otherwise.
More Screen & Display Subcategories
See all Screen & Display tools, every category or all 486 tools.