Compress Image to Size — Target 100KB / 200KB & More
Compress images under a target size in KB — quality is auto-tuned by binary search to approach your limit, meeting upload size caps for government, job, and exam forms. Batch, local, no upload.
Compressing an image to a target size means keeping the output file under a chosen KB limit (e.g. <100KB / <200KB), common for government systems, job sites, and exam registration that cap upload size. This tool auto-tunes the compression quality via binary search to approach your target while guaranteeing it stays under. Processing runs entirely in your browser — no upload.
When You Need It
Upload Size Caps
Government / job / exam systems often cap at <200KB — compress under the limit to upload.
Uniform Size Control
Batch-cap a set of images to the same size limit for easier management.
Save Bandwidth & Space
Bring large images down to a target weight to save bandwidth and storage.
About Compressing to a Target
- Auto-approaches the target — no manual trial and error on quality
- Batch support — cap many images to the same limit at once
- Runs locally — images are not uploaded
- JPG / WebP / AVIF work best; PNG relies on palette reduction with limited gains
- Very small targets noticeably hurt quality as the tool trades quality to reach them
- Very small target + large image may not reach it — marked "smallest"
Compress to Size FAQ
It binary-searches the quality to approach and guarantee under the target (e.g. ≤200KB), usually close but not exactly equal — the point is to stay under your limit.
Lossless formats like PNG or already-tiny images may exceed a very small target even at the lowest quality. The smallest result is output and marked "smallest". Try smaller dimensions or JPG.
No, it compresses in the original format. Use the converter to change format.
No. Compression runs entirely in your browser.