Resize Image by KB Online
Resize and compress images to a specific exact file size in KB or MB.
or drop images here
About Resize Image by KB Online
Meet strict file size requirements for portal uploads, admissions, exams, and government job forms with exact KB targeting.
Using advanced bicubic interpolation and anti-aliasing resampling on an HTML5 Canvas pipeline, it prevents blurring, distortion, and pixelation when adapting images to displays, banners, and social media.
Batch resize dozens of photos simultaneously with aspect ratio locking and custom fit options, processed entirely on your device with lightning-fast performance.
How to use Resize Image by KB Online:
Upload your image
Enter your target size in KB (e.g. 50KB or 100KB)
Click Compress to target size and download
When People Use It
Government & Job Portal Applications
Meet strict upload caps (e.g., 20KB, 50KB, 100KB, or 200KB) for SSC, UPSC, state PSC exams, visa applications, and job portals without upload rejections.
Web Performance & Core Web Vitals
Shrink payload weight dramatically to improve Largest Contentful Paint (LCP), reduce page load times, and maximize Google PageSpeed Insights rankings.
Email & Messaging Attachments
Bypass strict 5MB to 25MB attachment limits on Gmail, Outlook, and messaging apps by compressing heavy photo attachments in seconds.
Mobile Storage & Bandwidth Economy
Reclaim precious smartphone and cloud drive storage by compressing large camera rolls and high-resolution photo archives without noticeable loss.
Privacy
Your photos are processed inside your browser. Files are not sent to our servers. For details on what data the site itself collects, see the Privacy Policy.