built into Chrome so give it a try if you are unhappy with Tincr or just can't get it to work. I plan to continue maintaining tincr for now.
Tincr seems easier to set up IMO, of course I'm biased. I couldn't get it to work as advertised (some of you have the same problem with
tin.cr apparently). Also, it seems like the only generated language they support is Sass. Not completely sure about this since I couldn't get it to work.
It looks promising but I wonder how committed they are to this direction. It seem like they have one guy or less working on it. They actually shipped it originally in January as an experiment and it still seems a little buggy.