D3.js (D3 for Data-Driven Documents) is a JavaScript library for producing dynamic, interactive data visualizations in web browsers. Developed by Mike Bostock
License: Open Source
D3.js is a powerful JavaScript library for creating interactive and dynamic visualizations, making it ideal for complex data representations on the web. In contrast, Graphviz specializes in static graph visualizations with a simpler syntax, focusing on relationships and hierarchies without the need for extensive programming knowledge.