JavaScript ECMAScript Feature Matrix

What JavaScript features and browser compatibility does this matrix show?

The matrix covers ECMAScript versions ES5-ES2024 with modern features like arrow functions, async/await, optional chaining, private fields, and more. Includes comprehensive browser support for Chrome, Firefox, Safari, Edge, plus Node.js compatibility information.

How do I use this tool for JavaScript migration planning?

Select your current JavaScript level (ES5, ES2015, etc.) and target version, then generate a migration plan. The tool shows new features available, browser compatibility requirements, and step-by-step modernization guidance with code examples.

Which browsers and JavaScript environments are supported?

The matrix includes support information for Chrome, Firefox, Safari, Edge browsers with specific version numbers, plus Node.js compatibility. Features polyfill availability, browser compatibility checking, and environment-specific recommendations.

How accurate is the browser compatibility information?

Browser support data is based on official ECMAScript specifications, MDN documentation, and Can I Use database. Each feature includes specific browser version requirements, polyfill availability, and Node.js support information for accurate planning.

Can I export the JavaScript feature matrix and compatibility data?

Yes! Export options include HTML tables for documentation, CSV data for analysis, JSON for integration, copyable text matrices, and detailed browser compatibility reports. Perfect for team planning, documentation, and development reference.