Compress Image to 100KB
ImageDrop an image and get it back at 100 KB or less — the best quality that fits, found automatically.
100 KB is the limit a lot of upload forms settle on — job and university applications, government and visa portals, profile photos, anything that stores thousands of pictures and wants them small. Drop the image in and it comes back at 100 KB or less. Rather than guessing at a quality slider, the tool tries qualities for you and keeps the highest one that fits, so the picture loses as little as the limit allows. If quality alone can't get a large photo that small, it shrinks the dimensions step by step and tells you the new size, instead of quietly handing back something smaller than you expected. It all happens in your browser — the photo is never uploaded anywhere.
Need a different limit? Image Compressor takes any target — 20 KB, 2 MB, whatever the form asks for.
Why do it here
100% private
Your image files are processed locally and never uploaded.
Instant
No upload or download wait — it runs at the speed of your device.
Free to start
Use it free every day; go Pro for unlimited runs.
No install
Works in any modern browser. No sign-up to begin.
How it works
- 1Drop your image
A JPG, PNG or WebP from your phone, camera or screenshots — several at once if you need to.
- 2Press Compress to 100KB
The target is already set. It searches for the highest quality that fits under 100 KB.
- 3Download
Every file comes back at 100 KB or less, with the size, and any change of dimensions, shown on the result.
Frequently asked questions
Will the file be exactly 100 KB?
It will be 100 KB or less — usually just under, because the tool keeps the highest quality that still fits. It never goes over to get closer to the number, since an upload form rejects a file that is even slightly over.
My form says 100 KB. Is that 100,000 bytes or 102,400?
Forms differ, so the tool aims for 100,000 bytes. A file that size passes either reading; one aimed at 102,400 could be rejected by a form that counts in thousands.
What if my photo can't get under 100 KB?
Large, detailed photos sometimes can't reach 100 KB at full size without falling apart. The tool then reduces the dimensions a step at a time and shows the new width and height on the result. If even a small version can't get there, it says so plainly rather than reporting success.
The form only accepts JPG. Will I get a JPG back?
A JPG stays a JPG. A PNG becomes a JPG too, unless it has transparent areas — then it becomes WebP, which keeps them. If the form insists on JPG, open Advanced and choose JPEG; transparent areas will turn white.
Is my image uploaded?
No. The compression runs in your browser on your own device, so the photo never leaves it. That matters for ID photos and documents, which are exactly what 100 KB forms tend to ask for.