Advanced JPG Compressor

What quality setting should I use?

The quality setting balances file size and image quality:

• 40-60%: Significant savings, noticeable quality loss
• 60-75%: Recommended balance (good quality with good savings)
• 75-85%: Minimal quality loss, moderate savings
• 85-95%: Near original quality, minimal savings

What is progressive JPG?

Progressive JPGs load in multiple passes:

• Show a low-quality preview quickly
• Gradually improve quality as more data loads
• Provide better perceived performance
• Typically result in slightly smaller files

Recommended for web use, but not for print.

What is chroma subsampling?

Chroma subsampling reduces color information to save space:

• 4:4:4: No subsampling (best quality)
• 4:2:2: Moderate subsampling (good balance)
• 4:2:0: Significant subsampling (smallest size)

The human eye is less sensitive to color details than brightness.

Can I convert PNG to JPG?

Yes! Our compressor can convert PNG images to optimized JPG format:

1. Upload PNG images along with JPG files
2. Compress as usual - they'll be converted to JPG
3. Download the optimized JPG versions

Note: Converting PNG to JPG will lose transparency.

How much can I compress JPGs?

Compression results vary based on image content:

• Photographs: 60-80% reduction
• Screenshots: 40-70% reduction
• Graphics: 30-60% reduction
• Text/images: 20-50% reduction

Higher compression settings yield greater savings.

Is my image data secure?

Absolutely. All processing happens locally in your browser:

• Images never leave your computer
• No server uploads or cloud processing
• No images are stored or transmitted
• Complete privacy guaranteed