The document discusses 6 essential front-end web development tools: 1) Built-in browser developer tools for editing HTML/CSS in real-time and debugging JavaScript, 2) Sublime Text code editor for ultra-fast coding with shortcuts, 3) GitHub for online code sharing and version control, 4) TypeScript for large-scale app development with static typing, 5) SASS for writing maintainable CSS code, and 6) jQuery for simplifying JavaScript development. Mastering these tools is important for any serious web or app development company.