Runs entirely in your browser — your image is never uploaded to any server.
100KB is enough for a clear photo at a moderate size or a readable scan of a small document, which makes it a common cap for profile pictures, form uploads and email attachments.
Tip: For a document, photograph it flat in daylight with the page filling the frame; dark corners and shadows waste file size and make the text harder to read.
How to compress an image to 100KB
- Select the photo or image you want to make smaller — JPG, PNG, WebP or a screenshot.
- Check the target size is 100KB, or change it if your form asks for a different limit.
- Press Compress to 100KB. The tool finds the best quality that fits, and reduces the width and height only if it has to.
- Check the new size and the preview, then download the JPG.
Frequently Asked Questions
How do I compress an image to 100KB?
Select your image, make sure the target is 100KB and press Compress to 100KB. The tool tries the highest quality that fits; if even a low quality is still too big, it reduces the width and height step by step until the file is under 100KB. Then download the JPG.
Will my photo still look good at 100KB?
Yes. 100KB keeps a photo sharp at a typical on-screen size, and a document scan readable.
Will the file be exactly 100KB?
It will be at or just under 100KB — as close to the limit as possible without going over, because that keeps the most quality. Sizes are counted in thousands of bytes, so the file also passes forms that count 1KB as 1,024 bytes.
Can I compress a PNG or a screenshot to 100KB?
Yes. JPG, PNG and WebP images all work, including screenshots. The result is saved as a JPG, which is far smaller for photos; any transparent areas become white.
Is my photo uploaded anywhere?
No. The image is compressed inside your browser on your own phone or computer, and never sent to a server.