100% free · No signup · No watermark · Runs entirely in your browser
Need the exact pixel size of an image? Upload it and this free image dimension checker reports the true width and height in pixels, plus megapixels, file size and format. Designers use it to verify export sizes, bloggers to check featured images, and developers to debug responsive layouts. Nothing is uploaded: your image never leaves your browser.
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Drop an image here or click to browse
JPG, PNG, WebP, GIF, BMP, SVG - stays on your device
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Width (px)
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Height (px)
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Megapixels
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File size
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Format
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Orientation
Frequently asked questions
Is the image dimension checker free?
Yes. Unlimited checks, no signup, no watermark, no daily caps. It runs entirely in your browser.
Are my images uploaded to a server?
No. Your image is read locally on your device and never leaves your browser, so it cannot be stored, viewed or leaked.
Does it work with SVG files?
It reports the SVG's intrinsic width and height when the file declares them. Some SVGs only carry a viewBox, in which case the tool reports what the browser resolves, which may differ from the design intent.
What is the difference between dimensions and file size?
Dimensions (width x height in pixels) describe how big the image is; file size (KB or MB) describes how much storage it takes. A 4000 x 3000 photo can be 2 MB or 12 MB depending on compression.
Is there a maximum file size?
No hard limit. Very large images (50+ megapixels) may take a moment to decode, but the check itself is instant once loaded.
How do I check an image's dimensions?
Short answer: Drop the image into the checker above or click to browse for it. The tool instantly shows the exact width and height in pixels, the megapixel count, file size, format and orientation. It reads the image's natural dimensions, so you see the true size rather than any scaled or displayed version.
This works for JPG, PNG, WebP, GIF, BMP and SVG files, straight from your device with no upload wait.
What is the difference between image dimensions and file size?
Short answer: Dimensions measure the image in pixels (for example 1920 x 1080), which decides how large it can display or print. File size measures storage in KB or MB, which decides loading speed. Two images with identical dimensions can have wildly different file sizes depending on format and compression.
For the web you usually want generous dimensions with a small file size, which is where modern formats like WebP help.
Why do my image dimensions differ from what I expected?
Short answer: The usual cause is looking at the displayed size instead of the natural size: CSS, responsive layouts and retina scaling change how big an image appears without changing its pixels. Exports can also differ if an app resized on save or stripped metadata. This checker reads the actual decoded pixels, so it settles the question.
If the numbers still surprise you, check whether your editor exported at a different scale factor, like 2x for retina.
