Question 1

How does the Image Compress to Size tool work?

Accepted Answer

Pick a target size (20KB, 50KB, 100KB, 200KB or any custom value), drop your image, and the tool auto-tunes JPEG quality AND image dimensions to land as close to the target as possible. It works in iterations: it compresses at the current resolution, checks the size, and if still too big it resizes the canvas down and tries again.

Question 2

What is the smallest size I can target?

Accepted Answer

You can target any size from 5 KB to 1 MB. For very small targets (under 20 KB), the tool will resize the image to a smaller canvas as well as lower quality. For best results, start with a JPG image — PNGs compress less efficiently and may not reach very small sizes without losing a lot of detail.

Question 3

Are my images uploaded to a server?

Accepted Answer

No. Everything runs in your browser using JavaScript Canvas. Your images never leave your device — perfect for compressing passport photos, ID documents or sensitive graphics.

Question 4

What image formats are supported?

Accepted Answer

You can drop JPG, PNG or WebP images. The output is always a JPG (the most size-efficient format for photos). For transparent PNGs, use the regular Image Compressor instead.