Upload & Settings
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Click to upload or drag & drop an image
Supports JPG, PNG, WebP, GIF, BMP
Supports JPG, PNG, WebP, GIF, BMP
Compression Result
Upload an image to get started
Original
Compressed
Original
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Compressed
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About Image Compression
How does image compression work?
Image compression reduces file size by lowering the quality level of the encoded image data. For JPEG and WebP files, this discards fine detail that the human eye is unlikely to notice at normal viewing distances. PNG uses lossless compression, so file size savings are typically smaller. This tool uses your browser's built-in Canvas API — no server involved.
When should I compress an image?
Compress images before emailing them, uploading to websites with file size limits, posting on social media, or storing large photo libraries. A good rule of thumb: if a photo is over 1 MB and you don't need print quality, compress it. Most web and messaging use cases are well-served by the Medium quality setting.