100% Private In-Browser Tool
Compress Image to Under 100 KB
Iteratively compress JPG, PNG, and WebP images locally until they fit strictly under 100 KB — no server, no upload, no account.
Compress Image Under 100 KB
Compress images to under 100 KB directly in your browser.
Drag & drop image files here, or browse
Supports JPG, PNG, and WebP. 100% client-side local processing.
Note: The browser iteratively searches for an output quality to hit your approximate target size.
KB
Presets:
Prevents expanding image dimensions beyond source size
Privacy GuaranteeYour images are compressed purely inside Web Workers using HTML5 Canvas. Zero data leaves your device.
Why use ImgZero for JPG / WebP?
Targeted iterative encoding to guarantee file size under 100 KB
Ideal for passport applications, government forms, and job portals
Keeps maximum possible visual quality at the target size
100% private — processed entirely on your device
Frequently Asked Questions
How does ImgZero compress an image under 100 KB?
ImgZero uses a local binary-search algorithm inside Web Workers to automatically adjust encoding quality and dimensions until the output file size is strictly under 100 KB.
Why do government portals require images under 100 KB?
Many online forms and portal systems impose strict file size caps such as 100 KB to save database storage and ensure fast uploads from slow connections.