Image Compression Checker
Check an image’s file size, dimensions, format, compression ratio and optimization opportunity before deciding what to change.
Why use this tool?
- ✓ file-size analysis
- ✓ dimensions and megapixels
- ✓ format detection
- ✓ estimated reduction
- ✓ recommended next action
- ✓ browser-local analysis
Common use cases
- • diagnosing oversized files
- • pre-upload checks
- • website audits
- • choosing the next optimization
How to use image compression checker
Choose your image
Start with the original file whenever possible.
Set the goal
Use a quality, percentage, destination or upload-size setting.
Process locally
The image is processed in your browser.
Review and download
Compare the result and keep the original as your master copy.
Frequently asked questions
Are my images uploaded?
No. These image workflows process the selected file in your browser during the session.
Can I keep the original image?
Yes. The tools create an optimized copy; keep the original as your master file.
Does this checker change the file?
No. It analyzes the selected image without overwriting the original.
What does it recommend?
It uses the image dimensions, size and format to suggest compression, resizing or conversion.
Continue your image workflow
After optimizing an image, use the next tool that matches the actual destination instead of processing the same file repeatedly.
Privacy and file quality
Keep the original image as your master copy. Compression is a trade-off between file weight, dimensions, format and visual detail. MAXScanner shows the resulting file size so you can make that choice from the actual output rather than an estimate.