Images
Compress an image to 100 KB
Choose a photo and download a copy under 100 KB for an exam, admission or ID form. The 100 KB target is already selected.
How it works
- Choose your imageDrag in or select the photo from your device. It is processed in your browser.
- Pick the size or formatChoose a target size like 200 KB, or the output format. The preview updates right away.
- Download the resultCheck the final size in the preview and save the image to your device.
Save and continue on the desktop
Download or copy your result here first. Open the free desktop to save to Files or use more features.
- Change a photo’s format: HEIC, JPG, PNG, WebP
- Save to Files when you continue on the desktop
- Every tool in one place, no new tabs
After you download, continue on the desktop for Files or the full app.
What Compress Image to 100 KB can do
Who asks for 100 KB
The tightest limits come from systems that store hundreds of thousands of applicant photos: national exam registrations, university admission portals, civil-service and job applications. Some set a floor as well as a ceiling (40–100 KB, for example), so read the line next to the upload field before you compress.
What 100 KB does to a phone photo
A phone photo is usually 2–6 MB, so reaching 100 KB takes both lower quality and a smaller image. The tool tries quality first and scales the photo down only when it has to; the result line shows the new width so you can check it against the form’s pixel requirement. A passport-style headshot still reads clearly at this size, but a landscape with fine detail will not.
Your ID photo stays on your phone
Forms that ask for 100 KB usually want your face or a document scan. Here the photo is compressed by your browser: it is not sent to a server, and nothing is kept after you close the tab. Every photo it compresses also comes out without location or camera details.
More image tools
Questions
Will the file be exactly 100 KB?
Just under it. That is what forms check. You see the final size before you download.
The form says 40–100 KB and my result is 30 KB. What now?
That happens with small or simple pictures: the tool already saved it at its top quality, 95% (where the Quality slider stops too), and that is all it weighs. Nothing here makes a file heavier. Start from a bigger original, such as the photo from the camera rather than a screenshot or a copy that went through a messenger.
My photo is already under 100 KB. Do I need this?
No. The tool tells you it already fits and does not re-compress it for nothing.