About Image Compress
Re-encode images at a selected quality and view original size, compressed size, reduction, dimensions, and previews.
Image Compress re-encodes the selected image at a chosen quality and reports the resulting size and percentage change. Processing remains local and the preview makes visible artifacts easier to spot.
How to use it
- Enter or select your source data.
- Adjust the available options and run the tool.
- Review, copy, or download the result.
Common use cases
- Lower page weight before uploading a photograph.
- Bring an image under an attachment or CMS size limit.
- Compare quality settings without repeatedly using a desktop editor.
Worked example
Reduce a camera JPEG at quality 75 before publishing it online.
Limitations and responsible use
- PNG encoders may ignore or react differently to a lossy quality setting, depending on the browser.
- Repeated lossy compression can accumulate visible artifacts.
- Dimensions remain unchanged; use Image Resize when pixel count is the main source of file size.
Frequently asked questions
Why did the compressed file become larger?
The browser encoder and selected format may be less efficient for that particular source.
Is the original file overwritten?
No. The tool creates a separate downloadable result.