Compress Image to 20KB Online Free
Reduce any JPG, PNG or WEBP photo to exactly 20KB — or any target size you choose. No upload to server, no registration, 100% private.
✓ Free Forever
✓ No Server Upload
✓ No Registration
✓ Batch Processing
✓ JPG · PNG · WEBP
When Do You Need to Compress an Image to 20KB?
Many online platforms and portals require images under 20KB for very strict government portals and exam registrations. Here are the most common situations:
| Use Case | Typical Size Limit | Recommended Target |
|---|
| Strict government exam portal | 10–20 KB | 20 KB |
| Railway / bank exam registration | 10–20 KB | 20 KB |
| Online form with very strict limit | 20 KB | 20 KB |
| Thumbnail / icon | No strict limit | 20 KB |
| Low-bandwidth upload | No strict limit | 20 KB |
Frequently Asked Questions
Does compressing to 20KB reduce image quality?
Yes, some quality reduction is inevitable when compressing to a specific file size. However, our binary-search algorithm finds the highest possible quality that still meets your 20KB target, so quality loss is minimized.
Is my image uploaded to a server?
No. All processing happens entirely inside your web browser using the HTML5 Canvas API. Your images are never sent to any server, never stored anywhere, and never seen by anyone other than you.
How do I compress a photo to 20KB for an exam registration?
Upload your photo to this tool with the 20 KB preset selected. The tool will compress your image to under 20KB. Note that at 20KB, some quality reduction is visible — this is unavoidable at such a small file size. The result is still accepted by most exam portals.
Can I compress multiple images at once?
Yes! You can select up to 20 images at once. All of them will be compressed to 20KB simultaneously. Download them individually or all at once.
Other Target Sizes
Need a different file size? Choose from our dedicated tools: