My wife uses http://myfitnesspal.com, which she thinks is still free. There's a 'premium' mode but I don't know what advantages it offers that would make it worth $10 a month or $50 a year.
We've put a number of recipes in, but the place to start a new recipe is not obvious, and she winds up searching for it half the time.
She used to use the one at Weightwatchers.com, but they've fiddled with their point system so much that we find their information useless these days, and I always thought it was poorly designed and difficult to use.
I used to use the one on about.com, but stopped using it because their food dictionary had too many errors in it. I'm not sure it's even there any more, if I search on 'nutritional analysis' at about.com I get links to a half dozen or so other recipe analyzers, but not theirs.
If you google 'recipe analysis' there are a bunch of them out there, but I can only comment about the ones we've had experience with.
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