Pre-set target · 20 KB
Compress JPEG to 20 KB
Exam forms, admit cards, visa counters and job portals keep asking for tiny uploads. This editor hits a hard 20 KB ceiling for you — searching encoding qualities on your device, never uploading the file. If hitting 20 KB needs a resolution trim, it applies one automatically.
Drop images to compress
or click to pick from your device. Paste withCtrl + V works too.
JPG · PNG · WebP · GIF up to 50 images stays on your device
Recommended for web pages and sharing
Perfect for upload portals and ID documents — we probe encoding quality automatically until each file fits.
Aspect ratio is always preserved — leave a box empty to ignore that axis. We never upscale.
Saved as a new .min file — the original is never modified.
What 20 KB buys you
A 20 KB JPEG holds less detail than an ordinary photo — the trick is sending the right pixels. Our engine down-scales as needed:
| Use | What it looks like |
|---|---|
| Passport / ID photo | ≈ 480–800 px wide, still crisp at document scale |
| Exam & admit-card photos | Meets the limit without a single byte over |
| Profile thumbnails | Comfortably sharp even below 320 px |
Who hits this exact limit
- Visa & passport photo counters that reject anything over 20 KB
- Government exam forms (admit cards, hall tickets, correction windows)
- Job application portals with strict upload limits
- Legacy e-services whose forms were built when storage was precious
Why the limit exists
These limits exist because the systems accepting the upload were sized decades ago — disk quotas, database columns and review screens never grew. The file must genuinely be at or under 20 KB; a nicer photo that comes out at 21 KB is a rejected photo. Our Target-size search accounts for the last few bytes of overhead, so the saved file lands under the line.
Three steps, about a minute
- 01
Drop your image
The editor arrives pre-set to 20 KB. One file or fifty — they stay on your device.
- 02
Press Run
The engine searches encoding quality until the file first fits under the limit, then locks in the best-safe option.
- 03
Save the result
Download the .min copy or the whole batch as one ZIP — with the guaranteed ceiling intact.
20 KB, answered
How does the compression to 20 KB work?
Nothing is uploaded. Your browser decodes the JPEG, then our MozJPEG engine encodes it at trial qualities and stops when the file first fits under 20 KB — keeping the highest quality that passes. If no encoding can fit, the picture is downscaled a step and the search runs again instead of giving you a file that will be rejected.
Will a 20 KB photo still be usable?
For its real purpose — a form slot, an ID badge, a small profile picture — yes. Fine art is another story; 20 KB is genuinely small. The editor tells you the quality it had to use, so you can decide and, if needed, run again after trimming dimensions on the resize page.
Why do these portals ask for 20 KB at all?
Mostly history: upload pipelines, storage quotas and inspection UIs written when a 20 KB photo was already a "large digital photo". The limit survived because nobody re-engineers gatekeeping that still functions.
The portal says "max 20 KB" — is 19.9 KB fine?
Yes, and anything less. The saved file is guaranteed at or under your target, overhead included — no rounding tricks, no 20.01 KB surprises at the upload counter.
Need a different ceiling?
Need smaller dimensions too? The resize tool trims pixels without touching bytes.