Octarine Logo
New in 0.57: Spaces, Template Settings & Ask Octarine images

Writing, without friction.
Everything you need, built in.

A fast Markdown workspace for notes, writing, and projects. Local files you own and control.

A trip itinerary note in Octarine with a photo, callout, and day-by-day table, next to the file tree and an Ask Octarine answer about which days need tickets booked

Octarine on macOS: file tree, images, callouts, and tables, all from plain Markdown, with Ask Octarine reading the note.

Your notes app shouldn’t need assembly.

Plugins for the basics, a subscription to keep your notes, a separate app for tasks, and a cloud you don’t control. Octarine ships the whole thing, on files you own.

Assembling a notes appSome assembly required. Parts sold separately.
  1. 1
    Install plugins (crossed out: built in) to get the basicsDaily notes, templates, Views, Git Sync, and AI are built in and work together.
  2. 2
    Rent (crossed out: buy once) the app that holds your notesFree with no time limit. Pro is a one-time purchase, with all future updates.
  3. 3
    Switch apps (crossed out: same app) to track the workProjects and tasks live next to your notes, and a checkbox can become a task.
  4. 4
    Upload your notes (crossed out: your own folder) to someone else’s cloudPlain Markdown in a folder you choose. Sync it with Git or anything else.
  5. 5
    Decide what to write nextThat part is still yours.

Built in, not bolted on.

The things you’d usually go find a plugin for.

  1. Do I still need a separate app for my tasks?

    Nope. It’s called Tasks.

    A home for every stream of work, with projects, cycles, and IDs that follow the task.

    Explore Tasks
  2. Can I get a Kanban board without a database plugin?

    Yep. It’s called Views.

    Turn one Markdown workspace into live tables, Kanban boards, and graphs without moving a file.

    Explore Views
  3. Do I need an AI extension to fix this paragraph?

    Nope. Writing Assistant is right there.

    Select a passage, describe the change, and review the rewrite in place before you keep it.

    Explore Writing Assistant
  4. How do I publish one note without setting up a site?

    One link. It’s called Sharing.

    Turn any note into a clean public page with one link, and keep everything else private.

    Explore Sharing

From a stray thought
to a working system.

The moments that come up every day, and what Octarine does with them, all on plain Markdown files in your own folder.

Capture now.

Quick Capture opens over any app and adds to the Inbox, today’s note, or any note you pick.

Quick Capture
The Quick Capture window floating over the desktop, about to capture into the Inbox

Just you and the page.

Focus Mode opens the note in a clean, dimmed view. Edits sync back to the main editor as you type.

Focus Mode
Chapter 3 draftThe town had always been quiet in winter, but that year the silence felt different.Mara noticed it first in the mornings, when even the gulls seemed to hold their breath.By the second week, nobody mentioned the boats anymore.

Notes tied to the exact moment.

Annotate lectures, demos, and calls with timestamps. Click one and the video jumps back to that moment.

Video Annotation
▶
02:1414:02+ Annotate
02:14Pricing objections start here
07:41Demo of the import flow, worth a clip
11:05Two people ask about PDF export

Pick up where you left off.

Jump to “next Friday”, move last week’s unfinished tasks into today, and get an AI recap of the week.

Daily Desk
November 2026
WNSuMoTuWeThFrSa451234567468910111213144715161718192021482223242526272849293012345506789101112
Migrate Incomplete Tasks
Tasks from Tuesday, November 10View Note
Audit current infra: services, environments, and owners
Add uptime and error-rate alerts
Review the CI/CD pipeline for slow or flaky steps
Write a rollback plan for the next deploy

Link anything, name it anything.

Type [[ to link a note, a date, or a task. Add | to show the link under a name of your own.

Doclinks
Q4 planning
Specs live in Documentation
Next up: launch plan

Bring your own agent.

Claude Code, Codex, or Cursor can read and update your notes and tasks through the CLI or MCP, locally.

Octarine CLI
Terminal
# An agent plans its work as tasks❯ octarine task create "Add semantic search" --project TAM❯ octarine task create "Create vector table" --parent TAM-24# …then reports progress as it ships❯ git commit -m "Add vector table" -m "Refs TAM-25"❯ octarine task update TAM-25 --state doneThe open Tasks window updates live.

Octarine for iOS.

The same Markdown files, with the parts you use most.

  • Library and the full editor
  • Ask Octarine
  • Quick Capture and Inbox
  • The command bar
  • Minutes, for recording meetings and voice memos
  • Widgets
  • And a lot more…
Join TestFlight

Requires an Octarine Pro license.

Octarine for iOS Library screenOctarine for iOS Editor screenOctarine for iOS Ask Octarine screenOctarine for iOS Quick Capture screenOctarine for iOS Inbox screenOctarine for iOS Command screen

Loved and trusted by many.

Been using Octarine as my daily driver for the past few days and I'm impressed. Seriously considering jumping from Noteplan.
rjdvskon Discord
Octarine looks FRESH! I've tried a lot of note taking apps. Got a good feeling about this one 🔥
commonchilddevon Discord
I just want to say, amazing project. I love Octarine, thanks for making it.
jackon Discord
Awesome new experience. Loving it. Nice work! I am using the app daily as my go-to note app
nicolasembletonon GitHub

Your notes live where you choose.
Stored as plain Markdown.

Octarine reads and writes Markdown files in a folder you pick. There’s no proprietary database, and no copy of your notes on our servers.

Octarine next to a Finder window showing the same workspace as plain Markdown files

Plain Markdown.

Notes, daily notes, and even tasks are files you can open in Finder, any editor, or Git, with or without Octarine.

How your notes are stored

Sync your way.

Use the built-in Git Sync, or keep your workspace in iCloud Drive, Dropbox, Google Drive, OneDrive, Syncthing, or any folder sync.

Set up Git Sync

Yours, offline.

Core note-taking works without a connection. AI is optional, indexes on your device, and can run on a local model.

Pricing

Start free.
Pay once for Pro.

Octarine is free to use with no time limit. Pro is a one-time purchase with all future updates included, not a subscription.

Free

Free forever
$0no card, no time limit

The core of Octarine, with your notes kept as plain Markdown in a folder you choose.

Download
  • The editor
  • Unlimited workspaces
  • Daily notes
  • Graph view
  • Full-text search

Pro

Up to 3 devices
$79once · all future updates

Everything in Free, plus Tasks, Views, and AI that works across your workspace.

See what’s included
  • Tasks & Projects, with cycles and a board
  • Video Annotation, Views and Note Types
  • Ask Octarine, with your own key or a local model
  • Quick Capture, Inbox, Focus Mode, and Related Notes
  • 30+ light and dark themes, or create your own

Team

$129per seat, one time

Seats your company owns and reassigns, managed from one dashboard.

  1. 1
    Buy seats$129 per seat, paid once. 2-seat minimum.
  2. 2
    Assign themGive each seat to a person from one dashboard.
  3. 3
    Reassign when people changeThe seats belong to your company, not to one person.
What a team paysOne time
2 seats$258
5 seats$645
10 seats$1,290
25 seats$3,225

A quieter place
to think, write, and work.

  • Bootstrapped. No VC.
  • Batteries included
  • Your data is yours. Always.
  • Opinionated
  • Built by one person
  • Calm software
Notes /Why Octarine.md

Octarine is built slowly, deliberately, and independently.

I believe good software should get out of the way. It's user-focused by default — designed around how people actually think, write, and work, not around metrics or funnels.

Octarine is bootstrapped. No venture capital. No growth-at-all-costs roadmap. The product answers to its users, not investors.

It's opinionated by design. I make clear choices so you don't have to spend time configuring every detail. Instead of endless options and switches, it ships with defaults that are meant to feel right and stay out of your way, so you can focus on the work rather than the tool.

Your data is yours. Always. Data isn't the moat — the experience is. It's built around interoperability, open formats, and tools that work with the rest of your system instead of locking you in.

Batteries are included. Core features aren't hidden behind plugins, extensions, or marketplaces. What you need to do real work ships with the app, thoughtfully integrated from day one.

This exists to be calm, intentional software in a noisy world — built by one person, for people who care about their tools.

Thanks for stopping by, and I hope it helps you find joy in writing, as it has for me.

Cheers,Rajat
Stella, a tabby cat, peeking out of a red play tunnel
Stella, intern
Mylo, a black cat, sitting on the desk next to a monitor full of code
Mylo, intern

Start writing with Octarine.

A fast, private Markdown workspace for capturing ideas, shaping notes, and keeping your writing in files you control.

Download for macOSIncludes a 7-day Pro trial.

Photograph: Carleton Watkins, Yosemite Valley from Inspiration Point, c. 1865. Public domain.