Resize Image to 350 KB Online

Resize an image to 350 KB online. The professional 95% safety cap keeps output at or below 332.5 KB. The selected 350 KB tool uses a maximum output cap of 332.5 KB, which is 95% of the requested size.

How to use this image tool

1. Select an image from your device.
2. Choose the dimensions, format, quality or target size.
3. Preview the result and download the optimized image.

Private browser-based processing

Your image is processed locally with the browser Canvas API. It is not uploaded to an image-processing server.

Frequently asked questions

Does this tool upload my image?

No. Image editing happens locally in your browser.

What image formats are supported?

Common JPG, PNG and WebP images are supported. Available export formats depend on your browser.