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Image Compressor – Reduce Photo Size to 20 KB, 50 KB, 100 KB
Government and exam portals often reject photos that are even 1 KB over the limit. Enter the target size and the compressor finds the best quality that fits, reducing dimensions only if needed.
How to use the Image Compressor
- Choose one or more images.
- Type the maximum size in KB or tap a preset (20, 50, 100, 200 KB).
- Optionally set a maximum width, e.g. if the form also asks for a pixel size.
- Press Compress and download each file, or all as a ZIP.
The result is always at or just under your target, which upload forms accept. If a form also has a minimum size (for example 10–20 KB), choose a target near the upper limit. For exact pixel sizes, use the Image Resizer first.
🔒 Privacy: this tool runs entirely in your browser using JavaScript. Your files are never uploaded to Crop Desk or any other server, and you can even use it offline once the page has loaded.
Frequently asked questions
Why is my file 18 KB when I asked for 20 KB?
JPG size jumps in small steps as quality changes. The tool picks the highest quality that stays under your limit, so slightly smaller is normal.
Will my photo look blurry?
At 50 KB or more, photos usually look the same. Very small targets like 10 KB may reduce dimensions; that is still fine for form photos.
Can I compress PNG files?
Yes. PNGs are converted to JPG or WebP, which are far smaller. Transparent areas become white.
Are my photos uploaded?
No. All compression happens on your device using the Canvas API.
Guides: How to Resize a Photo to 50 KB or 100 KB (Without Making It Blurry) · HEIC, JPG and PNG Explained: How to Convert iPhone Photos for Uploads