Free private image tool

DPI / PPI Checker

See stored density beside the pixels that determine print potential.

  • ✓Read supported embedded density.
  • ✓Keep pixel dimensions visible.
  • ✓Compare three practical PPI levels.

Image analyzer

Drop an image. Get the facts.

Runs locally

Your images never leave your device.
Analysis happens locally. Nothing is uploaded or saved.

01

How this check works

  1. 1

    Choose an image from your device.

  2. 2

    Your browser reads the file locally.

  3. 3

    Review quality and privacy details instantly.

02

What this result tells you

Check embedded image density and compare pixel dimensions with print sizes at 300, 240, and 150 PPI.

  • Read supported embedded density.
  • Keep pixel dimensions visible.
  • Compare three practical PPI levels.

Practical examples and limitations

When to use this tool

Use the stored density field to understand a file’s default physical-size hint. PPI refers to image pixels per inch; printer DPI refers to device dots per inch. The terms are often mixed, but a printer’s advertised DPI is not the same quantity as the photo’s pixel density.

Worked example

A 3000 pixel-wide file at 300 PPI is 10 inches wide. At 150 PPI the same pixels cover 20 inches. Changing only the density tag changes that size hint, not the amount of captured detail. The print planner calculates the effective density at a size you choose even when the file has no density tag.

What to check before using the result

Some files have no readable density field, and a browser can still display them normally. Metadata values may disagree across EXIF and format-specific fields. Do not label a missing tag as low quality; look at actual pixel dimensions, cropping and intended output size.

FAQ

Frequently asked questions

Can changing DPI add image detail?+

Changing only the density label does not create pixels or detail. It changes the default physical size some software uses for printing.

Your images never leave your device.+

ImageMetaCheck reads your file with browser APIs on your device. The image is never sent to our server, stored in a database, or used for training.