Image Compressor
Reduce image file size locally.
Free converter
Image Format Converter
Convert an image locally to JPEG, PNG or WebP and download the result.
Images are processed only in your browser. CorelyUp does not upload, store or inspect your files.
How to use this tool
Choose an image and output format to create a local converted copy.
Transparent method
Formula and method
The browser decodes the input image and re-encodes the canvas in the selected format.
Example
Convert a PNG to WebP when a smaller web delivery file is useful.
Assumptions and limits
- Transparency may be flattened when converting to JPEG.
- Images remain in your browser.
Frequently asked questions
Which format supports transparency?
PNG and WebP can support transparency; JPEG does not.
Related guides
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Image Resizer
Resize an image without changing its proportions.