Why might an image increase in size?

If an already heavily compressed JPEG is converted to PNG, or re-compressed at a higher quality than original, size might increase. Our tool clearly alerts you whenever this happens.

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IMAGE COMPRESSOR

Image Compressor

Reduce image file size significantly while preserving crisp visual quality with live before/after previews.

Real-time before and after size calculation
Quality slider with immediate feedback
Honest compression metrics (no fake percentages)
Batch compression with individual or all-in-one ZIP downloads
Preserves original color profiles and dimensions

Tip

All compression, converting, and resizing runs 100% in your browser for instant privacy.

How It Works

3 simple steps

Select images

Upload one or multiple JPG, PNG, or WebP images.

Adjust quality

Set your target compression level and inspect the estimated savings.

Save optimized files

Download the compressed images individually or as an organized ZIP.

Frequently Asked Questions

Our intelligent quantization preserves sharpness while eliminating redundant digital data. At 75–85% quality, the visual difference is virtually imperceptible.

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Your files are processed locally in your browser. No data is uploaded to any server.