About this tool
This page opens with a 20KB target already set — choose your images and start. Common for exam and government form photo uploads. The tool encodes each image, checks the real size, scales proportionally if needed and shows the actual bytes.
Compress images to 100 KB, 200 KB, 500 KB or any custom size to meet upload limits on application, exam and government sites. The tool encodes each image and checks the real byte count, optionally scaling dimensions, without your photos leaving the device.
How to use
Choose images and a 100, 200, 500 KB or custom limit, or switch to manual quality.
Optionally allow resizing, process and inspect actual bytes, dimensions and target status before downloading.
If a form allows no more than 200 KB per image, choose 200 KB and allow resizing if needed. Inspect the actual byte size and target status before downloading.
1 KB = 1024 bytes. Target mode adjusts quality, then reduces dimensions if allowed; a target may be unreachable without resizing. PNG has no lossy quality setting; JPG fills transparency white. Up to 50 images/100 MB input and 128 MB output.
KB means 1024 bytes. Compression can reduce quality or dimensions. Targets may be unreachable without resizing; PNG does not use lossy quality settings and JPG fills transparency white.
Frequently asked questions
Why isn’t the result exactly 20KB?
The tool guarantees the file is no larger than 20KB, so it is usually slightly smaller. It lowers quality first and scales dimensions only if needed, showing the exact byte count.
Are my photos uploaded?
No. Compression runs in your browser and photos never leave your device, which suits ID photos and private images.
Why can’t it reach my target size?
Quality alone has a floor. Allow resizing and the tool scales the image proportionally until it fits; without resizing, some images may not reach the target.