Compress Image to 30KB
Drop in any JPG, PNG, HEIC or WebP photo and this tool compresses it to exactly 30 KB — under the limit, not just close to it — while keeping the photo sharp enough to pass an exam portal's photo-quality check. Everything runs in your browser tab, so the original photo is never uploaded anywhere.
Where a 30 KB photo is asked for
A 30 KB cap shows up most often on recruitment portals that sit between the strict 20KB and the more relaxed 50KB caps. Portals set an exact upper limit rather than a range because their backend storage and print templates are sized for it — a file even 1KB over the cap is usually rejected outright by the upload widget.
How the compression is done
The tool re-encodes the photo as a JPEG and steps the quality down until the file lands under 30 KB, then nudges the pixel dimensions down only if quality alone can't hit the target without visible blotching. This order — quality first, size second — keeps faces sharper than tools that just shrink the photo's dimensions.
Common mistakes with a 30 KB target
- Uploading a HEIC photo straight from an iPhone — some portals silently reject it even though the KB is fine.
- Cropping so tight that the face fills the whole frame — most portals expect head + top-of-shoulders framing, not a close-up.
- Compressing a photo that's already 30 KB or smaller — re-compressing an already-small JPEG can introduce visible blotches; start from the original, uncompressed photo instead.
How it works
Frequently asked questions
Will the file always be under 30 KB, or just close to it?
Always under. The tool checks the encoded file size after every compression pass and keeps stepping down until it is strictly below 30 KB, not merely near it.
Does it work with a photo straight from my phone camera?
Yes — including HEIC photos from an iPhone. The tool decodes HEIC/HEIF, JPG, PNG and WebP, and corrects the orientation automatically so the photo isn't sideways after compressing.
Which exams or forms actually need 30 KB?
Most commonly recruitment portals that sit between the strict 20KB and the more relaxed 50KB caps. Always check the specific notification for your form, since portals do change their limit from year to year.
Reviewed by Manoj Pathak & Pallavi Yadav, Toolzo team — updated 23 September 2026.