Compress PNG Images Online

Reduce PNG file size by up to 80% while preserving transparency and quality. Perfect for logos, graphics, and icons.

Compress PNG Now

Why Compress PNG Images?

PNG is perfect for graphics with transparency, but files can be large. Our compressor reduces size while keeping your images crisp.

Preserves Transparency

Our PNG compressor maintains alpha channel transparency, perfect for logos and overlays.

Lossless Option

Choose lossless compression to reduce file size without any quality loss whatsoever.

Smaller File Sizes

Reduce PNG sizes by up to 80% using intelligent lossy compression with color reduction.

When to Use PNG vs JPEG

Choosing the right format matters for optimization.

Use PNG When...

  • You need transparency (logos, icons, overlays)
  • Image has text or sharp edges
  • Graphics with few colors
  • Screenshots and diagrams
  • You need lossless quality

Use JPEG When...

  • Photographs and complex images
  • No transparency needed
  • Images with many colors/gradients
  • Smallest file size is priority
  • Social media and email

How Our PNG Compressor Works

1

Upload PNG Files

Drag and drop your PNG images or click to browse. Upload multiple files at once.

2

Color Quantization

Our algorithm reduces the color palette while preserving visual appearance and transparency.

3

Download Optimized

Get your compressed PNGs with full transparency intact. Also available in WebP format.

Frequently Asked Questions

No. Our PNG compressor fully preserves the alpha channel (transparency). Your logos, icons, and graphics will retain their transparent backgrounds after compression.

Lossless compression reduces file size without any quality loss - the image is pixel-perfect identical. Lossy compression reduces the color palette which achieves much smaller file sizes but may have slight color variations. For most web use, lossy is recommended.

Yes! You can upload and compress multiple PNG images at once. Download them individually or as a ZIP archive. Check out our bulk compressor for high-volume needs.

WebP often produces even smaller file sizes than PNG while supporting transparency. OctoSqueeze can generate both formats from a single upload. Use PNG as a fallback for older browsers and serve WebP when supported.

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Optimize your PNG images while keeping transparency. Free and instant.

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