The note app where AI writes the note — layout and all. Just speak your mind.
macOS · Apple Silicon
From a messy brain-dump to a structured note — live demo coming soon.
Ask AI→copy→paste→format→repeat.
That's not a workflow. That's busywork.
Dump your raw thoughts — bullet points, fragments, half-formed ideas. No structure needed.
Tell monthlet what you want. “Turn this into a note.” Plain language.
AI writes it — choosing banners, columns, tabs automatically. Need changes? Just ask, and only that part updates.
Watch monthlet turn a brain-dump into a structured note, then refine it by just asking.
▶ 40-second demo coming soon.
Build and edit real spreadsheets by talking — formulas, formatting, the works.
Charts that bind to your sheet data and update as the numbers change.
Restyle an entire note in one request. No CSS, no fiddling.
monthlet = anagram of <html> + note
That's not a pun — it's the whole philosophy. Every note you make is a plain HTML file on your machine. Open it in any browser, today or in ten years.
Your notes live on your disk, not our cloud. With your own key, your data never has to touch our servers.
Plain HTML — readable by anything. You're never trapped.
If monthlet disappears tomorrow, your notes still open. Forever.
The app, free and complete.
Don't want to manage an API key? Subscribe and monthlet runs the AI for you. No key, no setup — everything else in the app stays exactly the same.
Yes — bring your own (Claude, OpenAI, or Gemini). Your data never touches our servers. Prefer not to manage a key? monthlet AI (coming soon) runs it for you.
Claude, ChatGPT, and Gemini — all three are first-class. Set up whichever key you already have during onboarding, and switch anytime in settings.
Never, when you use your own key. Notes stay on your machine; AI requests go straight from your device to your chosen provider.
No. Notes are always unlimited.
monthlet is free with your own API key. monthlet AI is a subscription that runs the AI for you — no key, no setup. The app itself stays exactly the same. Coming soon — join the waitlist.
Read and directly edit existing notes offline. AI features need a connection.
Your notes are plain HTML files on your machine. They open in any browser, forever.
macOS on Apple Silicon (M1 or later) today. Windows is on the way (to be released).
macOS · Apple Silicon