There is also a free and open-source app called ImageOptim [1]. I believe ImageOptim is older than Optimage but they seem to work the same way. They also offe

There is also a free and open-source app called ImageOptim [1]. I believe ImageOptim is older than Optimage but they seem to work the same way. They also offer a paid web API service with a similar price [2]. Posting just as an alternative, the more the better. [1] https://imageoptim.com/mac https://imageoptim.com/mac [2] https://imageoptim.com/api/pricing https://imageoptim.com/api/pricing