What is the Screen Orientation and Viewport Tester?
Real-time display of screen size, Viewport, orientation, angle, Pixel Ratio and Visual Viewport. ToolHub places the core computing entirely within the browser, allowing immediate use on both desktop and mobile devices, without the need to register an account or send content to the backend.
How to use this tool?
- Enter the data according to the field prompts and select the required processing method.
- Click "Process Now" to view the results, indicator summary and necessary error messages.
- After confirming that the content meets actual needs, you can copy the results or download them into files for further use.
Suitable use cases
Responsive web page, mobile phone rotation, bang area and virtual keyboard layout testing. All processing is completed in the current page, which is especially suitable for workflows that do not want to post internal data to remote services.
Interpretation of results and precautions
Some values are affected by browser scaling, toolbars and privacy protection. Tools will validate basic input formats and provide readable error messages, but production environments should still be reconfirmed against source specifications, business rules, or professional requirements.
Browser and device support
Screen Orientation Tester supports current Chrome, Edge, Firefox, and Safari releases. Mobile and desktop layouts use the same validation rules documented on this page.