How to use Image File Size Checker
- Select or drag an image into the tool.
- Adjust the available settings for the result you need.
- Choose Check file sizes and review the preview or file details.
- Download the new file to your device.
What this tool does
View image file size, type and estimated storage usage without uploading. The operation is performed locally using browser image and canvas capabilities. Output support can vary slightly by browser.
Privacy and file handling
Your file stays inside the current browser tab during processing. BrowserPixel does not receive, store or inspect the image. Closing or refreshing the page clears the selected working data from the page.
Quality tips
- Keep an untouched copy of the original file.
- Use PNG for transparency and sharp interface graphics.
- Use JPG for photographs when transparency is not required.
- Use WebP for a practical balance between file size and visual quality on modern websites.
Frequently asked questions
Is the Image File Size Checker free to use?
Yes. The Image File Size Checker works without an account and does not add a watermark.
Are my files uploaded to a server?
No. The processing code runs in your browser. Your selected files are not sent to BrowserPixel.
Does it work on phones and tablets?
Yes, on modern mobile browsers. Very large images may be limited by the memory available on the device.
Why can the output size be larger?
Changing format, dimensions, transparency or quality can increase file size. Try a smaller size, lower quality or WebP output when available.