How to Compress Image to 20KB
Government exam portals, state recruitment boards, and online application forms across India often mandate a maximum photo size of 20KB in JPEG format. This limit dates to an era of slower internet and smaller servers, but it's still enforced strictly — many portals will reject your upload if the file is even 1KB over the limit. This guide shows you exactly how to compress any photo to 20KB in your browser, without any app or software.
Quick Answer
Government exam portals, state recruitment boards, and online application forms across India often mandate a maximum photo size of 20KB in JPEG format. This limit dates to an era of slower internet and smaller servers, but it's still enforced strictly — many portals will reject your upload if the file is even 1KB over the limit.
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Step-by-Step Guide
4 steps · takes under 1 minute
Open the Compress to 20KB tool
Go to imgtoolkit.com/compress-image-to-20kb. No account or download needed — it runs in your browser.
Upload your photo
Click 'Choose File' or drag and drop your JPG or PNG photo. The tool accepts all common image formats.
Click Compress to 20KB
The tool automatically targets 20KB using adaptive JPEG compression. No settings to configure.
Check the result and download
The compressed file size is shown next to your filename. Click Download to save the image. It's ready to upload to your exam or government portal.
Before vs After Compression
Typical result on a 1080×1080px product photo
100% Private — Zero Uploads
ImgToolkit runs entirely in your browser using the Canvas API. Your images are never sent to a server, never stored in the cloud, and never seen by anyone else. This makes it safe for sensitive documents, client work, medical imagery, and confidential screenshots.
Pro tip
Use 75–85% quality for web images — you get 60–80% smaller files with no visible difference at normal screen sizes.
Format & File Size Comparison
Same 1080×1080px photo processed four ways
| Format | Quality | File Size | Notes |
|---|---|---|---|
| PNG (original) | Perfect | 4.2 MB | No compression — too large for web |
| Compressed PNG | Visually identical | 1.1 MB | −74% — transparency preserved |
| JPG (85% quality) | Excellent | 310 KB | −93% · Best for photos |
| WebP (85%)BEST | Excellent | 205 KB | −95% · Recommended for web |
Based on a 1080×1080px photo. Results vary by image content and complexity.
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Frequently Asked Questions
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