Free online pixel analysis tool for images. Count pixels of specific colors, calculate color ratios, and find unique color counts.
How to use Image Pixel Counter?
Upload the image to analyze.
Review pixel counts and ratios by color in the results.
Copy or export the data you need.
Frequently asked questions about Image Pixel Counter
Can I count pixels of a specific color?
Yes, select or enter a color to see its pixel count and percentage of the total.
Can I find the number of unique colors?
Yes, the total number of unique colors and a list of top colors are displayed.
How do I turn a pixel count into a print size?
Divide the pixel count by the dots per inch you intend to print at. At the 300 DPI print standard, a 3000×2000 px photo comes out at 10×6.7 inches, roughly 25×17 cm. For screen use, 72-96 DPI is plenty, so the same file covers a far larger area. That is why the question "is this image big enough" has no answer until you say what it is for.
What is counting the number of distinct colors actually good for?
Knowing the color count tells you immediately which file format will serve you. Fewer than 256 colors usually means an icon or a flat graphic, which shrinks dramatically as a PNG; tens of thousands of colors means a photograph, where JPG or WebP is far more efficient. And when a logo or UI element carries more colors than expected, anti-aliasing or a shadow has crept in — re-exporting from the vector source will clean it up.
How to get the most out of Image Pixel Counter?
Width times height gives the pixel count: 4000x3000 is 12 million pixels, or 12 MP.
Divide the pixel dimensions by 300 for print size — 3508x2480 is exactly A4 at 300 dpi.
The colour breakdown tells you whether the background is flat, which decides PNG versus JPG.