Free Online Image Compressor

Compress images directly in your browser with adjustable quality. No upload, no signup — your images stay private.

All processing is done locally in your browser. Your data never leaves your device.

How to Use Image Compress

Upload an image by clicking the upload area or dragging and dropping a file.
Adjust the quality slider to control file size vs image quality.
Preview and download the compressed image.

Key Features

Adjustable compression quality (30%-90%)
Preview before downloading
Maintains original image dimensions
100% client-side processing

Frequently Asked Questions

Does image compression reduce quality?

Yes, JPEG compression is lossy. Higher quality settings (90%) preserve more detail but produce larger files. Lower settings (30%) create smaller files with visible quality reduction.

Is my image uploaded to a server?

No. All compression happens locally in your browser using the Canvas API. Your images never leave your device.