JZR.

Image Converter

Convert images to PNG, JPEG or WebP, adjust quality and resize in batches. Your images stay on your device.

Runs locally in your browser. Your input is not uploaded or saved.

Conversion settings

Lower quality usually makes smaller files.

Resize keeps the aspect ratio and never enlarges images. Leave both dimensions blank to keep the original size.

Animated GIF, WebP and PNG become a still image. HEIC uses the first image. SVG is rendered into pixels; external resources and animated SVGs are unsupported. Original metadata is not copied.

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