How to compress an image
- Add your image Drop a file, choose one from your device, or paste from the clipboard.
- Set a target size Use the preset or enter your own limit in kilobytes.
- Download the result The tool returns the best quality that fits under the limit.
A practical limit for photos and forms
Many job boards, university portals, and marketplace listings cap images at 200KB. It is large enough for a clear portrait or product photo, but small enough to upload quickly on mobile data. A phone photo rarely arrives under that cap, so a dedicated compression pass is usually needed.
The exact limit can vary by system. If a form says “200KB,” keeping the result at or below 200,000 bytes is the safest choice, which is how this tool calculates the target.
How the tool protects quality
SizeUnder first tries a range of encoder qualities at the original dimensions. If the smallest acceptable quality is still too large, it reduces the long edge gradually and repeats the search. That preserves more detail than simply shrinking the image to a fixed size.
For most photos, the result is a 1,200–2,000 pixel image with a natural-looking level of compression. Screenshots and graphics with sharp text may need a different balance; WebP or PNG can be a better output choice.
When 200KB is not the right target
- For a full-width hero image on a website, 200KB may still be heavy; 100KB or WebP is often better.
- For a print file or a portfolio image, do not compress to 200KB — keep a high-quality original.
- For a passport or visa photo, check the exact pixel dimensions before compressing; a tiny file may meet the size cap but fail the dimension rule.
Frequently asked questions
Can I compress a photo to exactly 200KB?
The tool targets 200KB or less, not an exact byte count. A slightly smaller file is safer for upload forms and avoids rejection at the limit.
Does compression remove EXIF data?
Yes. The browser re-encodes the image, which removes most metadata, including GPS location and camera details. Orientation is corrected before processing.
Can I process several images at 200KB each?
Yes. Add multiple files and the same 200KB target is applied to each one. Successful results can be downloaded together as a ZIP.
Why is my PNG still large after compression?
PNG is designed for lossless graphics, not photographic detail. The tool can resize it, but converting to JPG or WebP will usually produce a much smaller file.
Last updated: November 12, 2026