Compress PNG Images Online

The best free online tool to compress PNG images losslessly.

Start Compressing PNGs

What is PNG Compression?

PNG is a lossless format ideal for graphics and screenshots. Our tool uses OxiPNG to optimize PNG data structures, removing unnecessary metadata to reduce size without touching a single pixel.

Lossless

Reduce size without any loss in image quality

Transparency

Preserves transparent backgrounds

Sharp Details

Perfect for text, logos, and screenshots

Why Compress PNG Images?

Optimized PNGs load faster without sacrificing the crisp quality required for logos and user interfaces.

  • Perfect quality preservation
  • Smaller files with same visual content
  • Faster loading icons and logos
  • Ideal for web graphics

Advantages of OxiPNG

OxiPNG is an advanced multithreaded PNG optimizer. It iterates through different compression strategies to find the absolute smallest file size for your image, completely losslessly.

How to Compress PNGs

  1. Drag and drop your PNG files into the box above.
  2. Wait for OxiPNG to optimize your images.
  3. Optimization is automatic and lossless.
  4. See how much space you saved.
  5. Click "Download" to save your optimized PNG images.

Local & Secure

Your sensitive screenshots and graphics never leave your computer. Compressing happens directly in your browser.

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