Convert images between PNG, JPG, WebP and more — adjust quality, resize, batch convert. Everything runs in your browser.
Image Converter is a free online tool that converts images between popular formats including PNG, JPEG, and WebP. Upload one or multiple images, choose your target format, adjust quality settings, and download the converted files — all processed entirely in your browser. The tool uses the HTML5 Canvas API for conversion, which means your images are never uploaded to any server. This makes it completely safe for converting sensitive photos, proprietary graphics, client assets, and personal images. There are no file size limits, no usage caps, and no account required. WebP is Google's modern image format that offers 25-35% smaller file sizes compared to JPEG and PNG at equivalent quality. Converting existing images to WebP can significantly improve your website's loading speed and Core Web Vitals scores. The tool makes this conversion effortless — just drag, select WebP, and download. For JPEG output, you can control the quality slider from 1-100 to find the perfect balance between file size and visual quality. A white background is automatically applied when converting from formats that support transparency (PNG, WebP) to JPEG, which does not support transparency. Common use cases include batch converting PNG screenshots to WebP for web optimization, converting WebP images to PNG for compatibility with older software, preparing images for different platforms that require specific formats, resizing images while maintaining aspect ratio, and optimizing image assets for mobile apps and websites.