Crunch PNG vs Kraken.io: What are the differences?
What is Crunch PNG? Insane PNG image optimization. Crunch is a tool for lossy PNG image file optimization. It combines selective bit depth, color type, and color palette reduction with zopfli DEFLATE compression algorithm encoding using the pngquant and zopflipng PNG optimization tools.
What is Kraken.io? Image optimization and compression API. Kraken supports JPEG, PNG and GIF files. You can optimize your images in two ways - by providing an URL of the image you want to optimize or by uploading an image file directly to Kraken API.
Crunch PNG and Kraken.io can be categorized as "Image Processing and Management" tools.
Crunch PNG is an open source tool with 2.73K GitHub stars and 94 GitHub forks. Here's a link to Crunch PNG's open source repository on GitHub.