D3.js vs. Chart.Js

D3 (or D3.js) is a free, open-source JavaScript library for visualizing data. Its low-level approach built on web standards offers unparalleled flexibility in authoring dynamic, data-driven graphics. For more than a decade D3 has powered groundbreaking and award-winning visualizations, become a foundational building block of higher-level chart libraries, and fostered a vibrant community of data practitioners around the world.

Chart.js is a free, open-source JavaScript library designed for data visualization, enabling developers to create interactive and responsive charts for web applications. It supports eight core chart types: bar, line, area, pie (doughnut), bubble, radar, polar area, and scatter. Originally developed by Nick Downie in 2013, Chart.js has evolved into a community-maintained project, recognized for its simplicity and flexibility in rendering charts using HTML5 canvas.