ej2

ej2, or Essential JS 2, is a collection of enterprise-grade UI components for building modern web applications. Developed by Syncfusion, it represents the second generation of the Essential JS library and is designed to be framework-agnostic while offering official wrappers for Angular, React, Vue, and Web Components. The library is implemented in TypeScript and emphasizes a modular, component-based architecture that allows selective inclusion of features to optimize bundle size.

The ej2 suite covers data visualization, data management, and user interface controls. Core components include grids and tree grids for data presentation, charts and maps for visualization, and editors, inputs, and buttons for user interaction. It also provides project management and collaboration tools such as schedule/calendar components, Kanban, diagram, and spreadsheet-style functionality. Many components support features like virtualization for large datasets, data binding, sorting, filtering, grouping, editing, and export options, along with localization and accessibility considerations.

Distribution and usage are centered on npm-based workflows. Components are packaged as modular libraries that can be consumed in web applications through framework-specific wrappers or as standalone Web Components. This enables developers to integrate ej2 components into diverse technology stacks with consistent APIs and theming capabilities.

Licensing and access are governed by Syncfusion’s commercial model, which includes a free Community License for eligible individuals and small organizations, in addition to paid licenses for larger teams and enterprises. The ej2 suite is commonly used in enterprise applications requiring a broad set of ready-made, maintainable UI components with consistent behavior across platforms.