Image Format Converter
Convert images between PNG, JPEG, and WebP formats. Batch conversion with adjustable quality and optional resizing.
Click to upload or drag and drop
JPEG, PNG, or WebP — up to 100MB
1 – 100 (ignored for PNG — PNG is always lossless)
Advanced: Resize Output
Leave empty for original size
Upload an image and click Convert Format to see results.
About This Tool
This free online image format converter transforms images between PNG, JPEG, and WebP formats directly in your browser. Your images are never uploaded to any server — all conversion happens locally using the Canvas API, ensuring complete privacy.
JPEG (.jpg): Best for photographs and complex images. Uses lossy compression — adjust quality to balance file size and visual quality. Does not support transparency (background becomes white).
PNG (.png): Lossless format that preserves exact pixel data and supports transparency. Best for logos, icons, screenshots, and images with text or sharp edges. Larger file sizes than JPEG for photos.
WebP (.webp): Modern format offering both lossy and lossless compression. Typically 25-35% smaller than JPEG/PNG at equivalent quality. Widely supported by modern browsers and ideal for web performance.
Quality Control: Adjust the quality slider for JPEG and WebP output. PNG output is always lossless, so the quality setting is ignored for PNG conversions.
Optional Resize: Set a maximum width to resize the output image during conversion, useful for creating thumbnails or ensuring consistent dimensions across your assets.