Cursor (AI Code Editor)

A VS Code fork built from the ground up for AI-assisted coding. Cursor doesn't just suggest code — it edits entire files, refactors functions, and explains codebases using natural language commands. The "Composer" feature lets you describe changes across multiple files and Cursor implements them. It went from 0 to 500,000+ developers in 18 months, with particular adoption among startup engineers. At $20/month (Pro), it's the fastest-growing developer tool since Copilot. The key insight: AI coding isn't about autocomplete, it's about letting the AI understand and modify your entire project context.