Compress Image Without Losing Quality
Shrink an image while keeping it looking the same. Compare Before and After side by side. 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.
What "without losing quality" really means
Be wary of any tool that promises zero loss. With JPG and WebP, a smaller file always means some detail is thrown away. The goal is to throw away only what you cannot see.
- Quality 85% to 90%: this page starts at 90%. The picture usually looks the same and the file is still smaller than the original.
- PNG output: lossless, so every pixel is kept. Savings are small, and you may get your original back if the result is not smaller.
- Resize only if it is oversized: a picture much bigger than it is ever shown can be scaled down with no visible change.
- Check the previews: the Before and After pictures sit side by side, so you can judge before you download.
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 there truly lossless compression here?
Only with PNG output, which keeps every pixel but saves little. JPG and WebP are lossy, so they always give up some detail.
What quality setting is closest to the original?
The higher the setting, the closer the result and the larger the file. From about 90% the difference is very hard to see.