v1.0.0 — now available

notes that
stay yours

A fast, beautiful, offline-first note-taking app. Your notes live on your device — always. No subscription. No cloud. No compromise.

Download for Mac 8 MB Detected: macOS Apple Silicon
9.4
MB install size
0
dollars / month
∞
notes, offline
3
platforms
noter
Notes
Canvas
Library
Settings
Search notes…
Physics of Light
The speed of light in vacuum…
2 hours ago
Project Ideas
A fast notes app with plugin…
yesterday
Reading List
— Thinking Fast and Slow…
3 days ago
Physics of Light
April 15, 2026
Light is a form of electromagnetic radiation with wavelengths between 380–700nm.
The speed of light in vacuum is exactly 299,792,458 metres per second.
Wave-particle duality
Light exhibits properties of both waves and particles, depending on how it is observed.

What's inside

Everything you need.
Nothing you don't.

✍️
Rich text editor
Slash commands, bubble formatting menu, headings, lists, blockquotes, code blocks, YouTube embeds, and image support.
🎨
Infinite canvas
Draw diagrams, connect ideas with arrows, embed note references. Powered by Excalidraw. Saves automatically.
🔌
Plugin architecture
Built on a kernel-based plugin system. Features are isolated modules. A marketplace is coming.
📤
Export anywhere
Export any note as PDF, HTML, or Markdown. Your content is never locked in a proprietary format.
🏷️
Tags & search
Tag notes, filter by tag, search full-text across title and body. Archive notes you don't need right now.
🔒
Fully offline
Everything is stored locally. No account. No sync server. No telemetry by default. Your notes are yours.

The philosophy

Built on principles

01

Local first, always. Your notes never leave your device unless you explicitly export them. No cloud required to use the app.

02

Small and fast. 9.4MB. Instant launch. No Electron. Uses the OS's native WebView — same engine as your browser.

03

Open format. Notes are stored as JSON on disk. You can read, edit, and back them up without the app.

04

Extensible by design. Every feature is an isolated plugin. The architecture is designed for a community marketplace.

Get started

Download noter

Download free Free forever. Open source.
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