Compress WebP Images
Make WebP images smaller, or save JPG and PNG as WebP. Free, and nothing is uploaded.
Click to choose images, or drag and drop them here
JPG, PNG, WebP and more. You can add many files.
100% Private
Images are processed locally in your browser — nothing is uploaded.
Fast
No waiting on uploads. Compression runs right on your device.
Free & Unlimited
No account, no watermark, no file limits.
How to compress and resize images
Three quick steps. Nothing to install and nothing leaves your device.
Add your images
Drag one or many images onto the box above, or click it to browse. JPG, PNG, WebP and GIF work in every browser.
Adjust the settings
Choose the output format, then compress by quality level or by target file size such as 100KB. You can also resize by percentage or to a set width and height. Results update automatically.
Compare and download
Check the before and after previews and the size saved, then download each image or all of them as a ZIP.
How to compress a WebP image
This page is already set to WebP output. WebP is usually the smallest of the three formats here and also keeps transparency.
- Quality: start at 80% and go lower in small steps while checking the After preview.
- From JPG or PNG: choose WebP as the output to convert and compress in one step.
- Browser support: current browsers can save WebP. If yours cannot, the file may come out as PNG, so check the file ending shown in the result.
- Where it is used: WebP suits websites. Some older apps and upload forms only accept JPG or PNG, and for those choose JPG as the output.
More image compression options
Frequently asked questions
Quick answers about the ConvertKit Lite Image Compressor & Resizer.
Are my images uploaded to a server?
No. Compression runs in your browser, so your images are not uploaded anywhere.
Can I process many images at once?
Yes. Add as many images as you like, then download them one by one or all together as a ZIP.
Why is my result sometimes larger?
Flat graphics and screenshots can compress better in their original format. The result list marks any file that grew so you can keep the original.
Does it work on a phone?
Yes, in any modern browser. Big batches of large photos are easier on a computer, because processing uses your device's memory.
Is WebP smaller than JPG?
Usually, at a similar look. Try both on your image and compare the sizes shown in the result list.
Does WebP keep a transparent background?
Yes. Transparent areas are kept when the output is WebP or PNG.