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Notepad.exe, a lightweight code editor for Mac, lets you open, write, and run code instantly without creating a project

9to5Mac highlights it as the indie app of the week, featuring a "start with a blank file, worry about projects later" philosophy with support for Swift, Python, JavaScript, and Go.

For anyone who has ever been annoyed by having to set up a project and folder structure through multiple menus just to write a few lines of code, a new macOS app called Notepad.exe was designed specifically to solve this problem, earning a spot as 9to5Mac's Indie App Spotlight of the week.

The app's core concept reverses the traditional workflow: users start with a blank file first and worry about project structure later, enabling zero-setup code experimentation and note-taking instantly. The name playfully mocks Windows Notepad to evoke simplicity and instant launching. Notepad.exe is developed by Marcin Krzyzanowski, an independent macOS/iOS software engineer and creator of popular libraries like CryptoSwift and ObjectivePGP. Requiring macOS 15 or later, the app allows users to write and run Swift, Python, JavaScript, TypeScript, and Go code all in one place.

Other notable features include a Notes Library for storing and searching code snippets, a built-in iOS Simulator integration which is exceptionally convenient for testing SwiftUI code, and an Agentic Coding Assistant supporting both local on-device AI models and OpenAI's Codex.

Regarding pricing, core features are free to use without an account. A Pro tier is available for $19.99 per year, or as a one-time perpetual license for $45 (covering version 1.x). It can be installed directly from the official website or via Homebrew using the command `brew install notepadexe`.

This information has been confirmed by the app's official website and analyzed by Michael Tsai, a respected macOS developer and blogger in the developer community.