# Screen Size Checker

> Check screen resolution, viewport size, DPR, and device info online.

- **Website**: https://screensizechecker.com/
- **Uneed Page**: https://www.uneed.best/tool/screen-size-checker
- **Pricing**: Free
- **Category**: Development
- **Tags**: SEO
- **Submitted by**: @bobo20220519-db75
- **Launch Date**: 2026-09-25
- **Social Links**: [Twitter](https://twitter.com/intent/tweet?url=https://screensizechecker.com&text=Check%20your%20screen%20size%20and%20viewport%20dimensions%20with%20this%20free%20online%20tool) | [Facebook](https://www.facebook.com/sharer/sharer.php?u=https://screensizechecker.com)

## About

Screen Size Checker is a free browser-based tool for developers, designers, QA testers, and website owners who need quick screen and viewport information. It detects screen resolution, browser viewport size, device pixel ratio, browser details, and device information, and includes references for responsive design, iPhone and iPad viewport sizes, standard resolutions, and screen comparison workflows. No signup is required.