How to Compress an Image to 100 KB (or Any Size) for Free
Shrink photos under 100 KB, 50 KB or 20 KB for forms, WhatsApp and email, without visible quality loss and without uploading them anywhere.
Quick answer: open the Image Compressor, add your photo, set quality to about 60–70% and choose JPG. If it's still over 100 KB, first shrink it to about 1200 px wide with the Image Resizer. That combination gets almost any phone photo under 100 KB.
Government forms, job portals and exam applications often require photos under 100 KB, sometimes under 50 KB or 20 KB. Phone photos are usually 2–5 MB, so you need two levers: quality and dimensions.
Step 1: Try quality first
- Go to the Image Compressor and drop in your photo.
- Set Output format to JPG (best for photos).
- Move the Quality slider to around 70% and press Compress.
- Check the new size shown next to the file.
At 70% you won't see a difference on screen, but the file is often 60–80% smaller.
Step 2: Resize if it's still too big
Dimensions matter more than quality. A 4000×3000 photo has 12 million pixels; at 1200×900 it has about 1 million, roughly a 12× reduction before any compression.
- Open the Image Resizer, set Width = 1200 (keep the lock on).
- Download, then run the result through the compressor again.
Target sizes cheat sheet
| Target | Width | JPG quality |
|---|---|---|
| Under 200 KB | 1600 px | 75% |
| Under 100 KB | 1200 px | 65–70% |
| Under 50 KB | 800 px | 60% |
| Under 20 KB (passport-style photo) | 400–600 px | 55–60% |
PNG won't get smaller?
PNG is lossless, so the quality slider can't shrink it much. Convert it to JPG (photos) or WebP (websites) in the Image Converter for a much smaller file.
Is it safe?
Yes. SaveAnyReel's image tools run entirely in your browser. Your photo is never uploaded, which matters for ID photos and documents.
Compress now: Image Compressor → · Image Resizer →