1. JavaScript: Essential for interactive web pages and dynamic content.
2. HTML/CSS: Fundamental languages for structuring and styling web content.
3. Python: Versatile language with frameworks like Django and Flask.
4. Java: Used for backend development, Android apps, and enterprise solutions.
5. PHP: Server-side scripting language for dynamic web pages.
6. Ruby: Known for its elegant syntax and the Ruby on Rails framework.
7. TypeScript: A superset of JavaScript, adding static typing.