Image Resizer
Resize an image without changing its proportions.
Free converter
Image Compressor
Compress an image locally in your browser and download a smaller JPEG, PNG or WebP file.
Images are processed only in your browser. CorelyUp does not upload, store or inspect your files.
How to use this tool
Choose an image, output format and quality, then download the browser-processed result.
Transparent method
Formula and method
The browser redraws the source image on a canvas and encodes it at the selected output quality.
Example
Choose WebP quality 75 to create a smaller image while retaining useful visual detail.
Assumptions and limits
- Images are processed locally and are never uploaded.
- Output support depends on the browser.
Frequently asked questions
Are my images uploaded?
No. Processing happens in your browser.
Related guides
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Image Format Converter
Convert images between JPEG, PNG and WebP.