Reduce the file size of your JPG, PNG, and WebP images directly in your browser. No files are uploaded to any server — everything is processed locally using the HTML5 Canvas API, keeping your images completely private.
The tool draws your image onto an HTML canvas and re-exports it at your chosen quality level. For JPG and WebP images, the quality slider directly controls compression. For PNG images, the tool converts to a more efficient format to achieve size reduction.
Your images never leave your device. All processing happens inside your browser — nothing is uploaded, stored, or transmitted anywhere.
It depends on the compression type. Lossy compression (used for JPG) removes some image data permanently, which can reduce quality slightly. Lossless compression (used for PNG) reduces file size without losing any image data. Modern algorithms minimise visible quality loss even with significant size reduction.
JPG uses lossy compression, making it ideal for photos where minor quality loss is acceptable in exchange for much smaller file sizes. PNG uses lossless compression, making it better for graphics, logos, and screenshots with text. JPG typically achieves 5-10x smaller file sizes than PNG for photos.
For JPG images, a quality setting of 75-85% typically produces files that are visually indistinguishable from the original while being 60-80% smaller. Below 60% quality you may start to see compression artifacts. For web use, aim for images under 200 KB.
Large images are the biggest cause of slow website loading. Google's PageSpeed Insights and Core Web Vitals scores are heavily influenced by image loading speed. Faster pages rank higher in search results, have lower bounce rates, and provide a better user experience on mobile.
No. This image compressor runs entirely in your browser. Your images are never uploaded to any server. All compression happens locally on your device using JavaScript's Canvas API, so your photos remain completely private.