Tooloat

Compress PNG images

Reduce PNG file size without a visible difference. Lossless optimization rewrites the file more efficiently, and palette reduction can cut flat graphics dramatically. You can also aim for an exact size in KB.

Tooloat runs in your browser and needs JavaScript. It opens in a moment, and your files are processed on your device.

How it works

  1. Drop your images.
  2. Set a target size or choose a quality level.
  3. Check the preview and download.

Why use it

  • Lossless OxiPNG optimization.
  • Palette reduction for graphics.
  • Target size search.
  • Batch with ZIP.

Questions and answers

What is lossless PNG compression?

The pixels stay identical. The file is simply encoded more efficiently.

When should I reduce colors?

For logos, icons and screenshots with flat colors. Photos look better in JPG or WebP.

Related tools

  • Compress images to a target sizeShrink photos and graphics for email, forms and websites.
  • PNG to WebP converterWebP is usually 25 to 35 percent smaller than PNG or JPG at a similar look, and every current browser can show it.
  • PNG to JPG converterConvert PNG images to compact JPG files.
  • Resize imagesMake pictures the exact size you need, whether that is 1080 by 1080 for Instagram, 35 by 45 millimetres for a passport or simply half the size.