Chart.js and long labels
For Chart.js 2.0+ you can use an array as label: Quoting the DOCs: “Usage: If a label is an array as opposed to a string i.e. [[“June”,”2015″], “July”] then each element is treated as a seperate line.” var data = { labels: [[“My”, “long”, “long”, “long”, “label”], “another label”,…], … }