Compress and optimize images directly in your browser. Reduce file size while maintaining quality. Supports JPEG, PNG, and WebP — nothing is uploaded to any server.
Drop images here or click to upload
Supports JPEG, PNG, WebP, GIF, BMP, TIFF
All compression happens in your browser using Canvas API. No images are uploaded to any server. Your files never leave your device.
Images typically account for 50-70% of a webpage's total size, making them the single biggest opportunity for performance improvement. Unoptimized images slow down page loads, increase bandwidth costs, hurt SEO rankings, and frustrate users — especially on mobile connections.
Google's Core Web Vitals, particularly Largest Contentful Paint (LCP), are heavily influenced by image loading performance. Pages that load within 2.5 seconds score well, while slow-loading images can push LCP beyond the 4-second "poor" threshold.
Lossy compression (like JPEG quality reduction) removes image data that the human eye can barely perceive. A quality setting of 70-80% typically reduces file size by 50-70% with minimal visible quality loss. Lossless compression reduces file size without any quality loss by optimizing how data is stored.
The WebP format, developed by Google, provides superior compression compared to both JPEG and PNG — typically 25-35% smaller files at equivalent visual quality. Most modern browsers support WebP, making it an excellent choice for web images.
Image resizing is equally important: serving a 4000x3000px image that displays at 800x600px wastes bandwidth. Always resize images to match their display dimensions, and use responsive images with srcset for different screen sizes.