Use this Image Compressor to reduce image file size directly in your browser. Upload a PNG, JPG, WebP, or SVG image, choose JPEG or WebP output, adjust quality, and optionally resize the image before downloading.

How It Works

The tool loads the image into the browser, optionally resizes it, and exports a new JPEG or WebP file using browser canvas processing.

Lower quality settings usually create smaller files but may also introduce visible compression artifacts. Reducing image dimensions can provide an additional file-size reduction.

Example

Suppose you have a 4000 × 3000 JPG photo for a blog post. You could select WebP output, set quality to around 0.80, and limit the width to 1200 px.

The resulting file will usually be much smaller than the original while retaining enough quality for typical web use.

Important Note

JPEG does not support transparency, so transparent areas are replaced with the selected background color. Compression and canvas export may also remove metadata such as EXIF or GPS information.

Always preview the result and keep the original image when quality or metadata matters.

Sources

• MDN Web Docs — HTMLCanvasElement.toBlob()
• MDN Web Docs — Image File Type and Format Guide