@jay,
You can download Fully-Featured Version of CanvasJS from Download Page for evaluation purposes for up to 30 days. To use charts without ‘Trial Version’ and ‘CanvasJS’ Credit Link you will need to have a Commercial Version of CanvasJS. Please checkout our Pricing Page for Non-Commercial & Discounted Licenses. Please contact sales@canvasjs.com for sales related queries.
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Vishwas R
Team CanvasJS