Compress a JPG to 20 KB
A 20 KB cap shows up on forum avatars and a few older portals, and your phone JPG sits well above it. JPG is lossy, so the tool dials quality down until the file hits 20 KB, no babysitting a slider.
Drop images here or click to upload
PNG, JPG, WebP, GIF, AVIF, HEIC — up to 50MB each
Output lands at or under your target. JPEG and WebP only.
- Files never leave your device
- Runs in your browser
- Free, no signup
What 20 KB buys you in JPG
20 KB is a small but honest thumbnail, roughly 200x200 to 280x280 pixels for a clean subject. A face stays recognizable and a flat logo looks sharp. Busy textures like grass or hair will soften, since JPG drops the fine detail to make room.
The reason JPG lands on 20 KB so well is that it is lossy by design. The encoder can trade visible quality for bytes in small steps until it matches the target. JPG and JPEG mean the same thing, so a .jpeg file works exactly the same.
Hitting the target without mush
Start from a modest source rather than a 12-megapixel original. The fewer pixels the encoder has to cover, the more quality it keeps per pixel at 20 KB. A tight crop helps for the same reason.
Need a gentler limit or a different input format? Compress to any size lets you raise the target. For hands-on control of the quality setting on a plain photo, quality-based JPEG compression is the tool to reach for.