Compress Image to 100KB
Make an image smaller than 100KB. The tool lowers the quality, and the size in pixels if needed, until it fits. 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 an image to 100KB
This page is already set to Target file size: 100KB. Add your image and the result appears on its own.
- JPG and WebP: the tool tries quality levels and keeps close to the highest one that fits under 100KB. If even the lowest quality (10%) is too big, it makes the picture smaller in pixels and tries again.
- PNG: PNG has no quality setting, so only the size in pixels can be reduced. For a photo, choose JPG or WebP as the output.
- Already small enough? If you keep the original format and size and the file is already under 100KB, you get your original back unchanged.
- Not reached? The file is marked "above target" with a red message. Try a larger target or resize the image first.
This size is often asked for by online forms and portals. Check the pixel size the form requires as well, since this tool may reduce it to fit the file size.
Here, 1 KB is 1,024 bytes, and 1 MB is 1,024 KB.
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.
How do I compress an image to under 100KB?
Add your image on this page, which is already set to a 100KB target. Check the size shown under the After preview and download the result.
Will my image be resized to reach 100KB?
Only if lowering the quality is not enough. The After preview shows the final size in pixels, so you can see whether it was reduced. PNG files can only reach a target by being made smaller in pixels.
What if my image is already under 100KB?
If you keep the original format and size, the tool returns your original file unchanged.