What image formats can I compress?

The tool compresses PNG, JPEG (JPG), and WebP images. Upload any of these formats and adjust the quality slider to reduce file size.

How much can I reduce the file size?

Depending on the image content and quality setting, file size can be reduced by 20% to 90%. Photographs compress more than flat graphics. Lower quality settings yield smaller files with more visible artefacts.

Does compressing a PNG keep transparency?

Yes. PNG compression is lossless and preserves the full alpha channel. Transparent areas remain transparent in the output file.

Is my image uploaded to a server?

No. All compression happens entirely in your browser using the Canvas API. Your image never leaves your device, so it is completely private.

Compress Icon

Reduce file size while maintaining true visual quality

Compression Quality: 80%

Drag and drop your file here

or click to browse files • Max 50MB

Tips:

•PNG files are converted to WebP during compression — WebP is supported by all modern browsers
•70–80% quality gives the best balance between file size and visual fidelity
•Lower quality works well for flat-color icons; avoid going below 50% for photos
•Compressing before converting to ICO keeps the final icon file size small

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