🗜️ Image Compressor
Compress JPEG and WebP images with controllable output quality. Selected images are processed on your device, not uploaded to OpenToolKit servers.
Process your image
No image selected.
How to use Image Compressor
- Select a supported image from your device.
- Adjust the processing settings above.
- Select Process and download and inspect the resulting image.
What to expect
Compress JPEG and WebP images with controllable output quality. The output is created using your browser's Canvas API. Quality, supported formats, available memory and download behavior depend on the browser. For JPEG, transparent areas may be flattened; check the output before sharing.
Common questions
Are my images uploaded?
No. This tool operates locally within your browser. External analytics and advertising resources may still load; read the privacy policy for details.
Can I process very large images?
Each image is limited to 15 MB and 20 megapixels. Large images may consume significant memory, so processing can fail on devices with limited resources.
Can I use this offline?
After the page and its assets are loaded, the image operation does not need a processing server, but the site itself and advertising resources ordinarily require network access.
Related: all Image Tools · all categories.