Image Compressor & Format Converter

Why Compress Images for the Web?

Large, unoptimized images are one of the biggest culprits behind slow-loading websites. Pages that take more than a few seconds to load suffer higher bounce rates and lower search-engine rankings. By compressing your images — especially converting them to modern formats like WebP — you can reduce file sizes by 50-80 % with barely any perceptible loss in quality, dramatically improving page speed and user experience.

This free online image compressor runs entirely in your browser using the HTML5 Canvas API. Your images are never uploaded to any server, which means your data stays private and the process is nearly instantaneous. Simply drag and drop a PNG, JPEG, WebP, AVIF, GIF, or BMP file, choose your output format and quality level, optionally set a maximum width or height to resize the image while maintaining its aspect ratio, and download the optimized result.

For best results, we recommend using the WebP format at around 75-85 % quality for photographs and PNG for graphics with sharp edges or transparency. Combining format conversion with modest resizing (e.g., limiting images to 1920 px wide) often yields the greatest file-size savings. A faster website means happier visitors, better SEO, and lower bandwidth costs.