How to use this page
- Choose a JPG, PNG or WebP image in the workspace above.
- Keep JPG or WebP selected and confirm the target is 100 KB.
- Compress on this device, check the actual size, then download.
Worked example: attaching a screenshot to a support form
A 1920 × 1080 PNG screenshot can be several hundred kilobytes even when it looks simple. Choose JPG or WebP, keep the 100 KB target, and compress. Text stays more readable if you first crop to the relevant window with the crop tool, then compress that smaller frame.
What this job is for
Use 100 KB for many web forms, newsletter images and intranet uploads. WebP is usually the smallest at a given look; JPG is the safer attachment when the destination is old. Start from the original photo, not a file you have already compressed twice.
Useful limits
If 100 KB still looks soft, the destination is asking for too few bytes for that canvas. Reduce the displayed width on the page or ask whether the form accepts 200 KB. Image Cosmos does not invent detail.
The live tool behind this page is Image Compressor. It is the same local engine as the rest of Image Cosmos.
Frequently asked questions
Is 100 KB enough for a website photo?
For a small content image, often yes. For a full-bleed hero, use more pixels at a higher target or serve WebP at the actual display width.
Can I hit 100 KB with PNG?
Not with a target. PNG encoding here is lossless and ignores the quality slider. Switch to JPG or WebP for a KB cap.
Is the image uploaded?
No. Compression stays in the browser. Closing the tab drops the temporary download link.