How to reduce image size to 30KB
- Choose or drop your photo in the box above — or select several photos at once to compress them all.
- The target is already set to 30KB. Choose JPEG if you are uploading to a form or portal.
- LightenPixel tests quality levels automatically and keeps the sharpest version under 30KB. If your form also has a minimum size, fill in Min KB.
- Check the preview and tap Download image (or Download all for several images).
30KB sits between the strict 20KB limits used for signatures and the 50KB limits used for photos. Many recruitment and exam portals use it for passport-size photographs. A clear head-and-shoulders photo about 400–600 pixels wide fits comfortably.
Where 30KB images are required
- Passport-size photos on recruitment and exam forms
- Scholarship and university applications
- Online ID card and membership forms
- Forms that ask for a photo between 10KB and 30KB
Tips for compressing to 30KB
- Crop to head and shoulders on a plain background before compressing.
- Set the max width to about 400–600 px for passport-size photos.
- Choose JPEG — portals rarely accept WebP or AVIF.
- If the portal says "between 10KB and 30KB", put 10 in Min KB so you don't go too small.
Need a different size? Use the 20KB or 50KB compressor.
Frequently asked questions
How do I reduce a photo to 30KB?
Add your photo — the target is preset to 30 KB — and download when the preview appears.
Can I compress several photos to 30KB at once?
Yes. Select or drop several images together and download them all as a ZIP.
My photo must be between 20KB and 30KB. What should I do?
Keep Max KB at 30 and enter 20 in Min KB. The tool will make sure the result is inside that range.
More free image tools
Reduce size in KBAny size or a KB range
Compress to 100KBFor forms, portals and email
Compress to 50KBPhotos for online applications
Compress to 20KBSignatures and small photos
Resize signature10–20KB signature images
Compress JPEGShrink JPG photos online
Compress PNGKeeps transparency
Compress WebPConvert and shrink to WebP