• Website: heynote.com
• Documentation: heynote.com
• Changelog: heynote.com

Heynote is a dedicated scratchpad for developers. It functions as a large persistent text buffer where you can write down anything you like. Works great for that Slack message you don't want to accidentally send, a JSON response from an API you're working with, notes from a meeting, your daily to-do list, etc.

The Heynote buffer is divided into blocks, and each block can have its own Language set (e.g. JavaScript, JSON, Markdown, etc.). This gives you syntax highlighting and lets you auto-format that JSON response.

Available for Mac, Windows, and Linux.

• Persistent text buffer

• Block-based

• Syntax highlighting:

  C , C#, Clojure, CSS, Erlang, Dart, Go, Groovy, HTML, Java, JavaScript, JSX, Kotlin, TypeScript, TOML, TSX, JSON, Lezer, Markdown, PHP, Python, Ruby, Rust, Shell, SQL, Swift, Vue, XML, YAML

• Language auto-detection

• Auto-formatting

• Math/Calculator mode

• Currency conversion

• Multi-cursor editing

• Dark & Light themes

• Option to set a global hotkey to show/hide the app

• Default or Emacs-like key bindings

Documentation is available on the Heynote website.

To develop Heynote you need Node.js and you should (hopefully) just need to check out the code and then run:

> npm install
> npm run dev

To run the tests:

> npm run test

To run the tests in the Playwright UI:

> npm run test:ui

I'm happy to merge contributions that fit my vision for the app. Bug fixes are always welcome.

See the documentation.

No, at the moment this is out of scope, sorry.

Currently, I'm not planning on adding this. The main reason is that it goes against the scratchpadness of the program.

I can totally see the usefulness of such a feature, and it's definitely something that I would expect from a more traditional Notes app. However a large part of Heynote's appeal is it's simplicity, and if that is to remain so, I'm going to have to say no to a lot of actually useful features.

See the documentation.

Heynote is built upon CodeMirror, Vue, Electron, Math.js, Prettier and other great open-source projects.