Compress an image to 100 KB
100 KB is the everyday target: small enough for email signatures, forum avatars, CMS uploads, and fast page loads, big enough that a photo still looks like a photo.
This page opens the compressor in target-size mode at 100 KB. Most photos up to ~1400 px hit it with no visible loss; the comparison slider proves it either way.
Loading tool…
This is Compress Image preconfigured for this task — open the full tool for every option.
How it works
Select an image; it decodes locally.
Choose an output format and quality, or set a target file size.
Compare original and compressed versions with the wipe slider.
Download — the size you saw is exactly the size you get.
What the tool does
- Quality slider with live re-encode and exact byte counts
- Target-size search that reports honestly when the target is unreachable
- JPEG, WebP, and PNG output
- Wipe-style before/after comparison at matched zoom
- Metadata stripped by default via clean re-encode
How the result is verified
The compressed bytes are re-decoded to confirm the image parses and dimensions match, and the displayed byte size is measured from the actual output blob.
Frequently asked questions
Why is 100 KB such a common limit?
It's the rough point where an image stops mattering to page-load and inbox budgets. Most web platforms settled there, which is why the target recurs everywhere.
Resize or compress — which first?
Resize first when the image is far larger than it will ever display; then let target-size compression close the gap. You keep more visible quality that way.