Resize image to KB
Online forms often reject photos and signatures that are too big. Pick a target like 50 KB and GrabKit finds the best quality that fits, right on your device.
- No upload
- Free, no sign-up
- Runs on your device
Drop photos or signatures
or choose files · JPG, PNG, WebP, HEIC
Stays on your device
How to use Resize Image to KB
- 1
Drop your image
A photo, signature or scan in JPG, PNG, WebP or HEIC.
- 2
Set the target
Choose 20, 50, 100, 200 or 500 KB, or type your own. Add exact pixel dimensions if the form asks for them.
- 3
Download
Get a JPG at or under your target size.
Made for online application forms
Job portals, exam registrations, visa applications and government websites often set strict limits for photos and signatures, such as “under 50 KB” or “between 20 KB and 100 KB”. Many also ask for exact dimensions in pixels. Read the form’s instructions and enter the same size and dimensions here.
If the form also has a minimum size, choose a target close to the upper limit rather than the smallest possible file. That keeps your photo as clear as it can be.
How the target size is reached
GrabKit looks for the highest JPG quality that fits under your target while keeping the picture as large as possible. If fitting would mean a blurry, blocky image, it makes the picture a little smaller in pixels instead, which looks much cleaner. The result is always at or under the target; if even a small image can’t fit, it tells you.
If a target is too small to reach even at a small size, GrabKit tells you so. Try a slightly larger target, or crop the image to just the part you need first.
Frequently asked questions
Is it free to resize images to KB?
Yes, completely free. There is no sign-up, no watermark, no daily limit and no premium plan.
Are my photos uploaded?
No. GrabKit processes your file with code that runs inside your own browser. The file is never sent to a server, so nobody (including us) can see it. You can even disconnect from the internet after the page loads and the tool keeps working.
How do I reduce a photo to 50 KB?
Drop the photo, choose 50 KB and download. GrabKit picks the best quality that stays under 50 KB, and lowers the dimensions only if it has to.
Can I also set the size in pixels?
Yes. Enter an exact width and height if the form requires them, for example for a signature or a photo.
What format is the result?
JPG, which almost every application form accepts and which keeps photos small.
What if my target is too small?
If the image can’t reach the target even at a small size, GrabKit tells you. Try a slightly bigger target, or crop away the parts you don’t need first.