Skip to content

Compress PNG images

  • Runs on your device
  • Works offline once loaded

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.

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 guides

Images6 min read

JPG, PNG, WebP or AVIF: which format to use

We saved six photos and a graphic in all four formats at the same visual quality and compared the sizes. The newer formats win on photos by a wide margin, but each format still has a job.

Images6 min read

Pixels, DPI and file size: how big does a photo need to be?

Upload forms ask for 300 DPI, print shops for high resolution, and phones save 12 megapixel photos. We tested what the DPI number really does, how file size follows pixel count, and how many pixels each use actually needs.

Privacy and security6 min read

How to remove location and other metadata from photos

Every photo carries hidden data about the camera, the time and often the place. We read what nine published photos still gave away, added a location to show how precise it is, and checked that removing it leaves the picture untouched.

  • 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.
Esc