A private, offline notes app for your whole life — budgets, journals, trip plans, and to-do lists, organized by an AI and stored on your computer, not in the cloud.
Stop Copy-Pasting Into Chat
Write plans, leave feedback inline, and review revisions in a space that's comfortable, without switching apps. The back-and-forth stays attached to the work instead of getting lost in a chat window.
Move Work Forward Faster
Moss presents information in the form that's easiest to understand and act on: checklists, tabs, formulas, charts, custom diagrams, and visualizations. Everything stays easy to scan so you can move work forward.
Context that compounds
Your messy notes, plans, and past work are all context that can be built on. Every session maintains persistent memory so your agent can pick up the thread instead of starting over from scratch.
Your notes are yours
Every note lives on your computer as markdown. Work offline, keep things private, move notes anywhere. Portable, flexible, no lock-in or account needed.
Work in the Markdown You Already Have
Open project docs, Claude Code plans, Obsidian folders, and plain .md files where they are. No importing, no converting, no migration cleanup.
Multiplayer, for humans and agents
Share your Moss notes with any local agent to bring them into a shared workspace to read and write with you. Real-time collaboration between people is coming next.
How is Moss a private notes app built for your whole life?
Most personal notes apps are either too simple or too complex. A basic notes app handles grocery lists but falls apart when life gets layered. A power tool like Notion requires setup, a learning curve, and a subscription to unlock what makes it useful. Moss is a personal notes app that sits in between: a clean, AI-organized workspace for your day-to-day life, built around privacy and simplicity. Everything in Moss stays on your computer as plain markdown files. No account required to get started, no cloud storage, no company holding your notes. A private notes app you actually own.
Can I use Moss for trip planning, budgets, and journaling?
Moss replaces a stack of disconnected tools. Plan a trip itinerary with the AI agent pulling in options and suggestions. Track a monthly budget with inline formulas that calculate automatically. Keep a daily journal in a note you revisit and build on over time. Draft a gift list, track a home project, organize your reading list. The AI agent handles the structure: organizing your notes, linking related ideas, and doing research when you ask. You stay in the document and focus on your life; Moss keeps things organized in the background.
What does it mean that Moss is a local-first notes app?
Local-first means your notes are files on your hard drive, not records in a company's database. In Moss, every note is a .md file: readable in any text editor, backed up wherever you want, and completely portable. If you already sync files with iCloud or Dropbox, your Moss notes sync automatically — no additional setup, no separate sync service required. The alternative — cloud-first apps like Notion or Evernote — keeps your notes on their servers. That's fine until you want to cancel, the pricing changes, or the company goes away. With Moss, your notes belong to you. Always. Cancel Moss and your notes are still right there, exactly as you left them.
Do I need an account or subscription to use Moss?
Download Moss and start writing. No signup screen, no email required, no trial that expires. The core notes app is free: create notes, organize them, search them, read them offline. If you want the AI agent to help with research, planning, or organization, that's where a subscription or your own API key comes in. But your notes — your actual writing — are always free and always yours. This matters for personal use. Your journal, your budget, your life plans shouldn't require a subscription to read.
How does Moss's AI help without getting in the way?
Moss's AI agent is available when you want it and invisible when you don't. Ask it to plan a weekend itinerary, calculate your monthly spending, or draft a packing list. It works inside your note, not in a separate chat window. When you're done, it's just a note — a plain file on your computer that you can edit, share, or print like any document. The agent also organizes your notes automatically: tagging related items, linking connected notes, and keeping your workspace structured without you doing any manual filing. The more you use Moss, the better it gets at keeping everything organized — without you ever having to think about it.
Is Moss a private notes app?
Yes. Everything in Moss stays on your computer as plain markdown files. No account required, no data sent to a server, no cloud storage.
Does Moss store notes locally?
Yes. Moss is local-first: every note is a .md file on your hard drive. You can back them up, move them, or open them in any text editor. Nothing is locked inside Moss.
Can I use Moss without an account?
Yes. Download Moss, open it, start writing. If you want AI features, connect your Claude Code subscription or API key — but your notes never leave your machine.
Is Moss a local-first notes app?
Yes. Moss was built local-first from day one. Notes are files, not database records. They sync if you want (via iCloud, Dropbox, etc.), but the source of truth is always your computer.