TimelineJS is a quality product that provides great flexibility with laying out a timeline design for your website. Data points can be integrated with external resources to keep the timeline fresh without the need to dive into code. Plus it's FREE! Review collected by and hosted on G2.com.

As a free tool, you are not going to receive any free support. I imagine there are ways to pay for support from third-party entities. But honestly, the tool is very easy to use and straightforward for setting up data aspects. Review collected by and hosted on G2.com.