Is my image uploaded?

No — the compression search runs entirely in your browser. Passport photos and ID scans never leave your device.

How does it hit the exact size?

It binary-searches the encoder quality — encode, measure, adjust — up to eight times, settling on the highest quality that fits under your target.

What if the target is impossible?

If even minimum quality can't fit (say, a huge photo into 20 KB), you get the smallest achievable file and the label tells you its real size. Resize the image smaller first, then re-run — both steps chain in the same studio.

What format comes out?

JPGs stay JPG and WebP stays WebP; PNGs are converted to WebP (transparency preserved) because PNG's lossless encoding can't trade quality for size.

Why do forms demand sizes like 100 KB?

Legacy storage rules, mostly — government and application portals set hard caps years ago. Whatever the reason, the cap is the cap; this hits it.

Compress to an exact size.

Pick 20, 50, or 100 KB — the quality search runs on your device until the file fits the cap.

Compress an image to an exact file size — 20 KB, 50 KB, 100 KB, or any cap a form throws at you. Visa applications, job portals, school uploads, and government sites all demand "under X KB"; GhostImage binary-searches the quality setting on your device until the file lands just under your target. If a target is impossible at any quality, you get the smallest achievable file and an honest size label — never a silent failure. Nothing is uploaded.

How it works

1
Drop your image
Drag in the photo or scan. It opens in the GhostImage studio with Compress to size pre-selected.
2
Pick the target
Choose 20/50/100/200/500 KB or type a custom cap. The quality search runs locally until the file fits.
3
Download the result
The label shows the exact size achieved — under your cap and ready for the upload form.

Frequently asked questions

Is my image uploaded?
No — the compression search runs entirely in your browser. Passport photos and ID scans never leave your device.
How does it hit the exact size?
It binary-searches the encoder quality — encode, measure, adjust — up to eight times, settling on the highest quality that fits under your target.
What if the target is impossible?
If even minimum quality can't fit (say, a huge photo into 20 KB), you get the smallest achievable file and the label tells you its real size. Resize the image smaller first, then re-run — both steps chain in the same studio.
What format comes out?
JPGs stay JPG and WebP stays WebP; PNGs are converted to WebP (transparency preserved) because PNG's lossless encoding can't trade quality for size.
Why do forms demand sizes like 100 KB?
Legacy storage rules, mostly — government and application portals set hard caps years ago. Whatever the reason, the cap is the cap; this hits it.

Related image tools

Compress image

Shrink JPG, PNG, WebP, AVIF, or HEIC with a quality slider.

Resize image

Scale a photo down to a max size — aspect ratio preserved.

Batch compress

Compress a whole folder of images at once, zipped for download.

Social sizes

Crop and resize to exact Instagram, YouTube, X, and Facebook dimensions.

Every GhostImage tool runs entirely in your browser. Your file is never uploaded — there's no upload endpoint to send it to.