Embedded DPI or PPI
JPEG may store density in JFIF or EXIF metadata, PNG can store pixels per meter in a pHYs chunk, and WebP can carry EXIF metadata. The checker names the source it found.
Embedded density metadata
Image DPI Checker
Check the embedded DPI or PPI of a JPEG, PNG, or WebP image, then compare its pixel dimensions with a practical print size. Everything runs privately in your browser.
Drop an image here
or paste one from your clipboard
JPEG, PNG, or WebP. Maximum 100 MB.
Private: your image stays in this browser tab.
Your DPI result appears here
We will distinguish embedded metadata from a print-size estimate.
Image density details
Embedded density—
Metadata source—
Pixel dimensions—
Horizontal—
Vertical—
Format—
Print size in inches—
Print size in centimeters—
What this DPI checker actually reads
DPI is often used loosely. This tool keeps embedded metadata, pixel dimensions, and calculated print size separate so the result is easier to trust.
Pixel dimensions
Width and height in pixels describe the real image grid. These values matter for screens and determine how large the image can print at a chosen pixel density.
Estimated print size
Print width equals pixel width divided by PPI. Use 300 PPI for a compact high-detail print, or a lower value when the image will be viewed from farther away.
Important: editing a DPI field alone does not increase resolution. A 1200 × 800 image still contains 960,000 pixels whether its metadata says 72 DPI or 300 DPI.
How to check image DPI online
The file is inspected locally, so you can verify density metadata without creating an account or sending the image to a server.
1. Choose an image
Select, drop, or paste a JPEG, PNG, or WebP file. A supported file is decoded in the current browser tab.
2. Read the source
Review the horizontal and vertical density values and whether they came from JFIF, EXIF, or PNG pHYs metadata.
3. Test a print target
Choose 72, 96, 150, or 300 PPI, or enter your own target, to calculate the matching physical print size.
DPI, PPI, and pixels are not interchangeable
The terms are related, but each answers a different question.
PPI describes pixel density
Pixels per inch connects a digital pixel grid to a physical size. A 3000-pixel-wide image printed at 300 PPI is 10 inches wide. The same pixels at 150 PPI produce a 20-inch-wide print.
DPI describes printer output
Dots per inch technically describes how a printer places ink or toner. Image files often label density metadata as DPI, so consumer tools commonly use DPI and PPI in the same conversation.
Image DPI checker FAQ
Short answers to the questions that commonly appear after checking an image.
How do I check the DPI of an image?
Choose a JPEG, PNG, or WebP image above. The checker reads available embedded density metadata in your browser and reports the DPI or PPI value and its source.
What if my image has no DPI metadata?
That is common and does not mean the image is broken. Pixel dimensions still describe the image. Enter a target PPI to estimate how large those pixels can print.
Does changing DPI improve image quality?
No. Changing only the metadata does not create pixels or detail. To support a larger high-quality print, you need more real pixel information or a smaller physical output.
Why can horizontal and vertical DPI differ?
Some files contain separate X and Y density fields. They are usually equal, but exports, scanners, or metadata editing can produce different values. The tool displays both rather than hiding the mismatch.
Are my images uploaded?
No. Supported files are decoded and inspected locally in your browser and are not sent to Image Size Check.
Check image DPI without uploading
Use the checker for real metadata, then choose a practical PPI target to understand the image's print size.
Check an image