Compress Image to 90 KB

Compress an image to 90 KB without uploading it.

or drop an image anywhere on this page

JPEG, PNG or WebP · up to 50 MB

Files never leave your device
Free, no sign-up
No watermark

How to use this tool

Choose a JPEG, PNG or WebP file, or drag it onto the drop area.
Check the target size (currently 90 KB). It is editable, so change the number or the KB/MB unit if your limit differs.
Press the button. The tool lowers the quality first, then reduces the dimensions step by step if the file is still too large.
Compare the preview and the measured output size with the original, and read any notes or warnings.
Download the new file. If it missed the target, adjust the target slightly or crop the original, and try again.

What to know before you compress Image to 90 KB

Setting the target to 90 KB rather than 100 KB is a deliberate safety strategy. Differences in counting, such as 1 KB being 1,000 bytes on some sites and 1,024 bytes on others, can push a 99 KB file over a strict 100 KB limit. Keeping the result nearer 90 KB avoids that, and the visible difference in quality between 90 KB and 100 KB is usually small. At this size most photographs stay crisp at normal screen sizes, and scanned pages remain readable. If your image is a PNG, remember that it cannot trade quality for size; the tool will reduce its dimensions to fit, which may be more noticeable than switching to JPEG or WebP output for photographic content.

Ninety kilobytes leaves headroom below a 100 KB limit, which is useful when a portal measures size slightly differently. The size you enter is a goal, not a promise: the result depends on the original image, its dimensions, its complexity, its format and your browser's encoder, and the tool reports the real size instead of assuming it.

Recommended settings and supported formats

Keep 90 KB as the target when the real limit is 100 KB. Choose JPEG output for photos. Check the reported byte size after download if the destination is strict.

Accepted input: JPEG, PNG and WebP (WebP depends on your browser). HEIC and AVIF are not supported. PNG is lossless, so it can only get smaller with fewer pixels unless you choose JPEG or WebP output.

Practical uses

Portals that state a hard 100 KB limit
Email attachments where multiple images must stay light
Scanned documents that should stay legible but small

Tips for a smaller file

Keep a 10% buffer under strict limits.
Prefer JPEG for photos; PNG only for flat graphics.
Crop dark borders from scans before compressing.
Re-check the file size in your file manager after downloading.

Frequently asked questions

Why target 90 KB for a 100 KB limit?

Different systems count kilobytes differently. A 10% buffer helps your file pass even if the portal's measurement is slightly stricter.

Can this tool guarantee 90 KB?

No tool can guarantee it for every image. It makes repeated attempts and reports the real size, and warns you if it could not reach the target.

Is there any watermark on the result?

No. The compressed image is a plain re-encoded copy of your picture.

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Privacy

Your image is processed entirely in your browser using your own device. It is not uploaded to Paul Digital or any other server, and nothing is stored once you close the page.