monthlet for Mac

monthlet is an AI-native note app. Instead of formatting notes by hand, you dump raw thoughts — bullets, fragments, no structure needed — and tell it in plain language what you want. The AI writes the note and decides the layout automatically: banners, columns, tabs, real spreadsheets, live charts, full-note themes. To revise, you just ask, and only that part updates. Every note is a plain HTML file stored locally on your disk — no cloud service, no lock-in, readable in any browser for years to come. The app is free and complete with your own AI key (Claude, OpenAI, Gemini, or any OpenAI-compatible service). Available for macOS (Apple Silicon) and Windows.