Image Compressor

How it works

The image compressor uses your browser's built-in canvas.toBlob API to re-encode images at the quality and format you choose. The original image is decoded into a canvas, then exported to a new file.

• JPG and WebP are lossy — smaller files, slight quality loss.
• PNG is lossless — preserves every pixel but produces bigger files.
• Optional max-width downscales images that are too large while keeping the aspect ratio.

All processing happens locally — your images are never uploaded.

Examples

Common starting points:

• Photos for the web: JPG, quality 75%
• Maximum savings: WebP, quality 70%
• Transparent images: PNG, no quality slider
• Email attachments: JPG, max width 1600px, quality 80%