D3.js vs Kendo UI: What are the differences?

D3.js and Kendo UI are both popular JavaScript libraries used for data visualization, but they have key differences that set them apart. 1. Core Functionality: D3.js is primarily a data visualization library that allows for a high level of customization and control over the visual elements, while Kendo UI is a comprehensive UI toolkit that includes data visualization components as part of a larger library of UI widgets. 2. Learning Curve: D3.js has a steeper learning curve due to its low-level approach and emphasis on DOM manipulation, compared to Kendo UI which offers a more user-friendly API and pre-built components that are easier to use for beginners. 3. License: D3.js is open-source and free to use under the BSD license, whereas Kendo UI is a commercial product that requires a paid license for commercial use, although a limited version is available for free. 4. Browser Compatibility: Kendo UI provides better cross-browser compatibility and handles browser-specific issues more gracefully compared to D3.js, which may require more manual adjustments for optimal performance across different browsers. 5. Community Support: D3.js has a larger and more active community of developers contributing to its development and providing resources, tutorials, and examples, while Kendo UI has a smaller but dedicated community that focuses on the UI components offered by the library. 6. Customization Options: D3.js offers more flexibility and customization options for creating unique and interactive data visualizations, whereas Kendo UI provides ready-made solutions with a more limited range of customization options out of the box.

In Summary, D3.js is a powerful and flexible data visualization library with a steep learning curve and extensive customization options, while Kendo UI is a comprehensive UI toolkit with a focus on user-friendly components and easy integration.