The industry's most powerful IDE for Ruby and Ruby on Rails. Since the late 2025 update (v2025.3), it is free for non-commercial use and features a Rails-aware MCP (Model Context Protocol) server for smarter AI assistance. It offers deep refactoring, integrated testing (RSpec, MiniTest), and a GUI-based debugger. While it has a higher RAM footprint than text editors, its new 'Islands' UI and faster multi-module startup make it the most productive environment for complex Rails apps.

The industry's most specialized IDE for PHP and web development. The December 2025 'v2025.3' update features full PHP 8.5 support, native Claude Agent integration, and built-in Laravel support (via bundled Laravel Idea). It excels at WordPress development, complex refactoring, and deep code analysis. While it remains a paid subscription (unlike WebStorm), its efficiency in handling massive frameworks and its robust Xdebug integration make it the standard for professional PHP teams.