How does it reach an exact KB size?

It binary-searches the quality setting first, keeping full resolution as long as possible. Only if quality alone cannot hit the target does it scale the image down, step by step.

Why isn't PNG offered as an output?

PNG is lossless, so it can't be squeezed to an exact size. JPG and WebP allow quality tuning, which is what makes precise targets possible.

What if the target is impossibly small?

The tool will tell you honestly: if even the smallest attempt exceeds the target, you get the smallest version it could produce, clearly labeled.

Is this good for job applications and exam forms?

Yes, that is exactly what it is built for: photo and signature uploads with strict limits like 20 KB, 50 KB or 100 KB.

Are my documents uploaded anywhere?

No. All processing happens locally in your browser. Your files never leave your device.

Can I set a custom KB value?

Yes, choose Custom and type any size in KB, such as 37 KB or 1024 KB.

Compress to Exact KB - Free Online Tool | IconVault

Shrink any image to an exact KB size free in your browser. Perfect for form uploads with strict file size limits.

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Compress to Exact KB

Hit an exact file size like 50 KB or 100 KB for form uploads

5 of 5 free uses left

Drop an image here

JPG, PNG or WebP

Target size

Quality is lowered first; if that isn't enough, the image is scaled down.

Format

PNG isn't offered: it's lossless, so it can't be squeezed to an exact size.

5 of 5 free compressions left - files never leave your device.

Your image appears here

Perfect for forms and portals that reject files over a size limit, like job applications and exam uploads.

About this tool

IconVault's Compress to Exact KB hits a precise file size target, like 50 KB or 200 KB, for forms and portals that reject oversized uploads. Pick a preset (20, 50, 100, 200 or 500 KB) or enter a custom value, choose JPG or WebP, and the tool lowers quality first; if that isn't enough, it scales the image down until it fits. You see the final size, quality and dimensions before downloading.

It is free to use and private by design: everything runs in your browser, so sensitive documents like ID photos never leave your device. Pro members get unlimited exact-size compressions.

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Compress to Exact KB - Free Online Tool | IconVault

Compress to Exact KB

About this tool

Frequently asked questions

Popular searches

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