ImageOptim is excellent for publishing images on the web (easily shrinks images “Saved for Web” in Photoshop). It's useful for making Mac and iPhone/iPad applications smaller (if you configure Xcode to allow better optimization).
Cost / License
- Free Personal
- Open Source
Application types
Platforms
- Mac
- Software as a Service (SaaS)

ImageOptim is the most popular Mac & SaaS alternative to OptiPNG.
ImageOptim is the most popular Open Source & free alternative to OptiPNG.
- ImageOptim is Free Personal and Open Source











































Excellent. So fast and easy to use, just drag and drop. It reduces 60% of my image. Thats amazing, saves us a lot of trouble.