How does image compression work?

The tool uses your browser's Canvas API to re-encode the image at a lower quality level, reducing file size while preserving visual quality.

Which formats are supported?

You can output JPEG, WebP, or PNG. WebP typically gives the best compression ratio.

Is my image uploaded anywhere?

No. All processing happens in your browser. Your images never leave your device.

Image Compressor

Compress images online for free. Reduce file size with adjustable quality. JPEG, PNG, WebP.

How to use: Drop an image, adjust quality and max width, then download the compressed version.

Related:Image Resizer

Drop image here or click to select

JPG, PNG, WebP supported

Quality: 75%

Max Width (0 = original)

Output Format

Compress Images Online

Reduce image file sizes without sacrificing quality. Upload any image, adjust the quality slider, pick an output format, and optionally resize. Everything runs locally in your browser for full privacy.

Frequently Asked Questions

How does image compression work?: The tool uses your browser's Canvas API to re-encode the image at a lower quality level, reducing file size while preserving visual quality.
Which formats are supported?: You can output JPEG, WebP, or PNG. WebP typically gives the best compression ratio.
Is my image uploaded anywhere?: No. All processing happens in your browser. Your images never leave your device.