Crunch

Crunch is a free, open source PNG image optimization tool for macOS that uses a lossy approach based on pngquant and zopflipng. Available as a native GUI application installable via Homebrew, it offers efficient PNG compression with image examples and compression ratio analysis detailed in its GitHub repository. Licensed under MIT, Crunch is designed to optimize PNG files while preserving quality.

platform:macos pricing:free language:c form:desktop-app form:open-source feature:lossy-compression feature:png-optimization feature:cli-installation target:designers target:developers