Compress JPG, PNG, and WebP images up to 90% smaller without visible quality loss. Batch processing, adjustable quality, format conversion. 100% client-side \u2014 your images never leave your device.
Drop images here or click to browse (JPG, PNG, WebP)
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Lossy compression (JPEG, WebP) works by analyzing the image and removing visual information that the human eye is least sensitive to. Color variations in smooth gradients, subtle texture details, and high-frequency patterns are reduced. The quality slider controls how aggressively this information is discarded — lower values mean smaller files but more visible artifacts.
Lossless compression (PNG) uses algorithms like DEFLATE to find repeating patterns in the image data and encode them more efficiently. No visual information is lost, but the file size reduction is typically less dramatic than lossy methods (usually 10-30% for photographs).
This tool uses the Canvas API built into your browser. Your image is drawn onto an invisible HTML5 canvas, then re-encoded at your chosen quality setting using canvas.toBlob(). The entire process runs locally in your browser — your images are never uploaded to any server, making this tool safe for sensitive or private photographs.
Tip: For the best compression ratio, try converting PNG images to WebP format. WebP typically produces files 25-35% smaller than JPEG at equivalent visual quality, and supports both lossy and lossless compression.