Chartist.js just had a lot of support on HN, although I haven't used it. I've used Raphaël but customizing it can actually be a bit hard. Chart.js is simple, ea

Chartist.js just had a lot of support on HN, although I haven't used it. I've used Raphaël but customizing it can actually be a bit hard. Chart.js is simple, easy to use, and just powerful enough for most cases.