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WebP is a modern image format that delivers significantly smaller file sizes than JPEG or PNG at comparable visual quality, which means faster page loads and lower bandwidth usage. This tool decodes your images, optionally resizes them while preserving the aspect ratio, and re-encodes them as WebP entirely inside your browser using the Canvas API.
Because everything happens locally, your images are never uploaded to a server — they stay private on your device. Drop one or many files, pick the quality and an optional maximum width, and download the optimized WebP versions in a click.