# Purocean (open-source notes and writing app)

> Purocean is a free, open-source notes and writing app for Windows, macOS and Linux. A highly extensible Markdown editor featuring version control, AI Copilot, document annotations, mind maps, document encryption, executable code snippets, chart embedding, HTML applets, plugins, and. It has 6,766 GitHub stars and is released under the AGPL-3.0 license.

A highly extensible Markdown editor, designed for productivity. Download | Try it Online >>> For more information on how to use the following functions, please see characteristic functions description

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/purocean/yn |
| Platforms | Linux, macOS, Windows |
| Interface | desktop GUI |
| GitHub stars | 6,766 |
| License | AGPL-3.0 (open source) |
| Replaces | n/a |
| Language | TypeScript |
| Website | https://yank-note.com |
| Official | no |
| Category | Notes & writing |
| Latest release | v3.93.0 (Sep 19, 2026) |
| Last commit | Oct 7, 2026 |

## Install

Download a build for your system from the project's releases (https://github.com/purocean/yn/releases) or website, or build it from source by following the README.

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