Private browser file tool
Compress Image
Reduce image quality or dimensions for a smaller sharing copy.
Reduce image quality or dimensions for a smaller sharing copy.
How it works
- Choose JPG, PNG or static WebP files from your device.
- Process them locally in your browser.
- Download One JPG or WebP image.
Limits and support
- JPG, PNG and static WebP only; maximum 24 megapixels and 8192 pixels per side.
- Images are re-encoded; source metadata and color profiles are not preserved.
- Lossy compression; the output may be larger for already optimized images.
- Transparent areas become white when choosing JPG.
Selected file data is processed on your device and is not uploaded to CobaltPebble for processing.
Compress Image FAQ
- What files does it accept?
- JPG, PNG or static WebP; up to 1 file at a time.
- What does it create?
- One JPG or WebP image
- What should I do if processing fails?
- Choose a smaller supported image, check the preview and adjust the options before retrying.