1. Auto-Detection
Your device pixel ratio and related dimensions are detected automatically on page load.
Device Pixel Ratio
Output
Note
Tools:
DPR Checker
Device Pixel Ratio Checker
Processing...
Device Pixel Ratio
Device Pixel Ratio is a free browser-based developer utility by ToolPix. All formatting, validation, and encoding tasks run 100% locally in client-side memory via JavaScript and WebAssembly — your source code, tokens, and data are never uploaded or stored on any server.
Quick Steps
2. Resize to Update
Resize your browser or rotate your device to see values update in real time.
3. Copy Results
Click the Copy button to copy all DPR information to your clipboard.
FAQ
What is device pixel ratio?
Device pixel ratio (DPR) is the ratio between physical pixels and CSS pixels on a display. A 2x DPR means each CSS pixel maps to 2x2 physical pixels.
Why does DPR matter for web development?
High DPR screens can display sharper images and text. Developers use DPR to serve appropriately sized assets for crisp rendering.
Does this update when I resize?
Yes. The output updates on resize and orientation change to reflect current viewport and DPR values.
Is any data sent to a server?
No. All values are read from browser APIs locally. Nothing is transmitted.
Is this tool free?
Yes, completely free with no usage limits or sign-up required.
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