Private
Your PNG stays on your device while this tool runs.
← All PNG tools
PNG DPI CHECKER
PNG DPI Checker
See whether a PNG declares physical pixel density and what DPI that metadata represents.
Local browser processing
Check PNG DPI
Read PNG pHYs density metadata and convert pixels per meter to DPI when the unit is defined.
1. Source
Choose or drop your PNG file
Drag it here or click to browse
Analyzing locally…
2. Result
Ready
Check PNG DPI
Horizontal DPI—
Vertical DPI—
Pixel density—
This PNG does not declare a physical pixel density in a pHYs chunk.
Benefits
Understand PNG density metadata
Browser-based
Analysis and supported processing use browser APIs locally.
Focused result
Read PNG pHYs density metadata and convert pixels per meter to DPI when the unit is defined.
How it works
How to check PNG DPI
- 1Choose or drag in a PNG file.
- 2The browser reads the PNG pHYs chunk locally when it exists.
- 3Review pixels per meter and the calculated horizontal and vertical DPI values.
Keep working
Related tools
FAQ
Common questions
What if the PNG has no DPI value?
That is normal. PNG density metadata is optional. If no pHYs density with a physical unit is stored, the tool reports that DPI is not specified rather than inventing a value.
Is my PNG uploaded?
No. This tool processes the PNG locally in your browser and does not require an application-server upload.
Does this tool modify my original PNG?
No. The source file stays unchanged on your device. When the tool creates an edited result, it generates a separate output file for download.
Do I need to install image software?
No. The supported workflow runs in a modern browser, so no desktop image editor is required for this task.
ALLONLINE.TOOLS
