Image Dimensions Checker
Reads and displays an image's exact width, height, aspect ratio, megapixel count, and file size.
What Does Image Dimensions Checker Do?
Reads and displays an image's exact width, height, aspect ratio, megapixel count, and file size. Before uploading a photo to a marketplace or platform with strict size requirements, it helps to know exactly what you’re working with. This tool reads and displays an image’s exact width, height, aspect ratio, megapixel count, and file size — no modification, just the information.
Runs 100% in your browser
picflo processes this image using JavaScript on your own device. It's never uploaded, stored, or seen by anyone else — and it works even if your connection drops mid-way.
How to Check Image Dimensions Online in 3 Steps
Upload your photo
Choose the image you want to check.
Details appear instantly
Width, height, aspect ratio, megapixels, file size, and format.
Download the summary
Save a text file with all the details, if you need a record of it.
Key features
- Instant width, height, and aspect ratio
- Megapixel count and file size included
- No modification — just information
Practical use cases
- Before uploading to a marketplace with strict size requirements, a seller wants to confirm a photo’s exact pixel dimensions.
- Someone received an image file and needs to quickly check its resolution and file size without opening an editor.
- A developer needs to confirm an image’s aspect ratio before using it in a layout that expects a specific shape.
Frequently asked questions
Does this modify my image in any way?
No — it only reads and displays information; the file itself is never changed.
What does the aspect ratio number mean?
It’s the width-to-height ratio in its simplest form, like 3:2 or 16:9, calculated from the image’s exact pixel dimensions.
Can I save the results?
Yes — click Download to save a text file with all the details.
Is there a free image dimensions checker online?
Yes — this tool is completely free, with no account, watermark, or upload limit.
Is Image Dimensions Checker free?
Yes, and there is no sign-up, watermark or daily limit — everything runs in your browser rather than on a metered server.