Notepad.exe is a lightweight Mac code editor for Swift, Python, JavaScript, TypeScript, and Go. Most editors want you to set up a project before you write a single line - Notepad.exe doesn't. Open it, write something, hit run. Your experiments live in a searchable library instead of a forgotten folder, and a built-in coding assistant called Doctor Marvin can run your code, read the output, and help you fix errors without you ever leaving the app.

• Run Swift or Python in seconds
• Prototype without a full project
• Keep all your snippets searchable
• Ask an AI that can fix your code