Need an image under 20KB? This tool compresses any JPG, PNG or WebP to 20 kilobytes or less — guaranteed — entirely in your browser. Drop the image, download the result, upload it where it was rejected. 20KB is the standard photo limit on exam registrations, admit cards and many government application portals.
Why the 20KB limit exists
Application systems that handle huge volumes — exam boards, recruitment portals, scholarship forms — commonly cap passport-style photos at 20KB. It is enough for a clear face photo at the display sizes these systems use, and the hard cap keeps their storage predictable. The tool finds the exact quality-and-dimension combination that lands just under 20KB, instead of making you guess with a slider.
How to compress an image to 20KB
- Drop your image above — or click to browse, or paste with Ctrl+V. Multiple files work at once.
- The 20 KB target is pre-selected, with JPG output for the most quality per kilobyte.
- Download your file. The size badge confirms it is at or under 20KB.
Tips for the best result at 20KB
- Use JPG for photos — PNG is lossless and struggles to hit small targets without heavy downsizing.
- Crop away empty background first — quality goes where the pixels are.
- Passport-style photos: crop to head and shoulders before compressing — the face keeps far more detail when the background is gone.
- Other limits: 10KB · 20KB · 50KB · 100KB · 200KB · custom size.
Frequently asked questions
Will quality survive at 20KB?
Yes, for its purpose: a properly cropped face photo remains sharp and recognisable at 20KB. Full-scene landscape photos will soften — crop first.
Is my image uploaded anywhere?
No — compression runs 100% in your browser. Documents and ID photos stay on your device.
Can I compress several images at once?
Yes. Drop a batch and every file is individually compressed to 20KB, then use Download all.
Is it free?
Completely — no sign-up, no watermark, no limits. See all our free daily tools and the complete compression guide.