About JPGCompressor.online

JPGCompressor.online is a free online image compression tool. Whether you need to shrink a photograph for a web form, an email, or a content management system, our tool compresses JPG, PNG, and WebP files to a target size in KB. The compression uses JavaScript and the HTML5 Canvas API, and the compressed result is uploaded to our server so you can download it. Uploaded images are deleted by us every day.

Our Mission

We built JPGCompressor.online to keep the workflow simple: the image is compressed in JavaScript, the compressed result is uploaded to our server so you can download it, and uploaded files are deleted by us every day. No signup, no watermarks, and no usage limits.

How It Works

When you select an image, the tool loads it into an HTML5 Canvas element and encodes it as a JPEG using your browser's native toBlob() API. It uses a binary search algorithm to find the highest quality setting that produces a file at or below your target size, typically converging in a few iterations. Your image is uploaded to our server for processing and is deleted by us every day. We do not sell or share your images.

Who Built This

JPGCompressor.online is an independent project focused on fast, simple image compression. The tool is built for everyday web projects, form submissions, and email attachments, and it stays free with no signup and no watermarks.

Get in Touch

Have a feature request, found a bug, or want to suggest a new KB target? Visit our contact page and send us a message. Feedback we receive by email is used to prioritize improvements.