Image Dimension Checker
Instantly check an image's width, height, aspect ratio, megapixels and file size.
ℹ️ About Image Dimension Checker
Image Dimension Checker instantly reads an image's exact width and height in pixels, its aspect ratio, megapixel count, file size and format — useful for confirming a photo meets a platform's upload requirements, or checking a photo's resolution before printing or resizing it. Everything is read directly from the file in your browser without uploading it anywhere.
🛠️ How to Use Image Dimension Checker
Upload an image and click "Check Image Details". The tool reads the file and displays its width, height, aspect ratio, megapixels, file size and format instantly in a simple results panel.
📥 Input → ⚙️ Process → 📤 Result
Input
An image file and size settings
Process
Calculates the requested dimensions while applying the tool’s resize rules.
Result
An image with the requested dimensions.
❓ Frequently Asked Questions
Is Image Dimension Checker really free?
Yes. The tool is available without a required account, watermark or paid conversion step.
Are my files uploaded?
No. ToolBoxly is designed to process supported files locally in your browser. Your source file is not uploaded to a ToolBoxly processing server.
Can I use the result commercially?
Yes, the tool itself does not claim ownership of your source files or generated output. You remain responsible for having the necessary rights to the material you process.
Why might a result look different?
Export settings, source format, browser capabilities and the type of content can affect the final file. Review the output before replacing the original.
Does it work on mobile?
Yes. The interface is responsive and works in modern mobile browsers, although very large files may be limited by device memory.
Practical ways to use Image Dimension Checker
When you're working with images day to day — product photos, social posts, ID pictures, scanned documents — a browser tool like this removes the need to install and learn a desktop editor for a five-second task. Marketplace and print platforms often reject uploads for the wrong pixel dimensions or DPI — checking dimensions here before uploading saves a failed-upload round trip. Everything above runs locally in your browser tab — the file you choose is not uploaded to a ToolBoxly server before you download the result, so there is nothing to wait on beyond your own device's processing speed. If you plan to use the result somewhere else — a client deliverable, an app store listing, a printed page — keep a copy of your original file and double-check the output against that destination's specific requirements before you rely on it.