About us

Resize Image in KB is a small, focused collection of free tools that help you prepare photos and signatures for online forms — exams, job applications, admissions and passport-style uploads. We built it because the photo and signature requirements on government and recruitment portals are confusing, and most existing tools either upload your files to a server or bury the result behind sign-ups, watermarks and ads.

What makes us different

Every tool on this site runs entirely in your web browser using the standard HTML5 Canvas API. That means your images are never uploaded to any server, never stored, and never seen by us or anyone else. The processing happens on your own device, so it is fast, private and works even without an internet connection once the page has loaded.

What we offer

• Resize and compress signatures to strict limits like 10KB, 20KB and 50KB.
• Resize photos to exact pixel dimensions and file sizes for online forms.
• Passport photo presets for common international sizes.
• A crop tool for getting the right shape before resizing.

Our promise

The tools are free to use with no account required, no watermarks added to your images, and no limits on how many files you process. We aim to keep the interface simple, the defaults sensible, and your data firmly under your control.

Have a suggestion or found a bug? We would love to hear from you on our contact page.