Paper SwitchCompress images to a target KB size in your browser.
PNG, JPG or WEBP · Up to 10 MB
JPG output uses a white background. PNG and WEBP keep transparency. Animated images use one frame. Smaller dimensions may be needed to reach your target.
Selected files are processed in your browser. Download the results before closing this page.
Prepare photos for upload limits such as 100 KB or 200 KB. Compare the result before saving; compression may reduce detail.
Check the accepted formats first. For a 500 KB limit, try a 450 KB target to leave room for different size calculations. Keep resizing off at first; if the target cannot be reached at acceptable quality, increase the target or allow smaller dimensions.
Try PNG and keep resizing off when sharp text or transparency matters. PNG does not use the JPG quality adjustment, so it may remain above your target. For photos, compare JPG and WEBP; confirm that the receiving website accepts WEBP. JPG makes transparent areas white.
Open the downloaded file at its actual size. Inspect small text, edges and faces, then check its pixel dimensions and file size. The preview fits the screen and can hide lost detail. A smaller file is not a better result if it is unreadable.
We used the same 1200 × 800 sample report, chose WEBP and a 30 KB target, and disabled smaller dimensions. This comparison changes the encoding, not the pixel dimensions. Review fine text before using the result.
Original: 53.9 KB, Result: 21.5 KB
These measurements are from one test file, not a promised result for every file. Sizes use 1 KB = 1,000 bytes.
Choose JPG when the receiving service requires it, WEBP when it accepts modern image formats, and PNG for transparency or crisp flat graphics. Start with dimension reduction disabled; only allow smaller dimensions if the target cannot be met and the result is still readable.
Target size is not guaranteed. JPG and WEBP compression can lose detail, while PNG size reduction here relies on smaller dimensions. If faces, edges or small text look damaged, raise the target size and start again from the original, not a previously compressed copy.
