Private browser file tool
Resize Image
Set image dimensions with an optional aspect ratio lock.
Set image dimensions with an optional aspect ratio lock.
How it works
- Choose JPG, PNG or static WebP files from your device.
- Process them locally in your browser.
- Download One resized PNG 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.
- Upscaling requires explicit permission and cannot restore missing detail.
Selected file data is processed on your device and is not uploaded to CobaltPebble for processing.
Resize Image FAQ
- What files does it accept?
- JPG, PNG or static WebP; up to 1 file at a time.
- What does it create?
- One resized PNG image
- What should I do if processing fails?
- Choose a smaller supported image, check the preview and adjust the options before retrying.