Definitely a good option as well. I ran the same 1.9mb PNG through ImageOptim and it got it down to around 600kb so still about double the size. Certainly a great improvement though, especially if you have a batch of PNGs to do, but you do compromise some quality with lossy compression.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.