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Codex

A free note-taking software for programmers and Computer Science students

From jcv8000·Updated June 13, 2026·View on GitHub·

A free note-taking software for programmers and Computer Science students Made by Josh Vickery The project is written primarily in TypeScript, distributed under the Other license, first published in 2021. Key topics include: codex, compsci, computer-science, cs, electron.

Latest release: v2.0.5— Codex v2.0.5
February 22, 2025View Changelog →
<p align="center"> <img src="./packages/renderer/public/logo.png#gh-light-mode-only" width="400" /> <img src="./packages/renderer/public/logo-light.png#gh-dark-mode-only" width="400" /> <br> <img alt="GitHub all releases" src="https://img.shields.io/github/downloads/jcv8000/Codex/total?label=Downloads"> <img alt="GitHub release (latest by date)" src="https://img.shields.io/github/v/release/jcv8000/Codex?label=Release"> <img alt="GitHub issues" src="https://img.shields.io/github/issues/jcv8000/Codex?label=Issues"> <a href="https://ko-fi.com/jcv8000"><img src="https://img.shields.io/badge/Ko--Fi-Donate-red"></a><br><br> <span>A free note-taking software for programmers and Computer Science students</span><br><br> <small>Made by <a href="https://jvickery.dev">Josh Vickery</a></small> </p>

About

Notice: If you're upgrading from Codex v1, make sure to back up your save data (save.json and notes folder) for all of your saves before updating.

Codex is a note-taking app that allows you to save styled and highlighted code snippets in your notes.

Other features:

  • Support for highlighting 190+ programming languages
  • Over 240 code themes
  • Sort your notes into nestable notebooks/folders, customizable icons for notebooks and pages
  • KaTeX math expressions
  • PDF and Markdown exporting

Screenshot

Example screenshot

Other Distributions

Arch Linux: You can install Codex from the AUR with codex-bin (unofficial)

Building Locally

Requires Node.js 16 or higher

sh
pnpm install

pnpm dev # Run the app in development mode with hot reloading
pnpm dir # Only generates folder(s) of the standalone executable, quicker
pnpm dist # Generates all installers/portable archives for your platform

License

This work is licensed under a CC BY-NC 4.0 license.

Contributors

Showing top 1 contributor by commit count.

jcv8000

jcv8000

313 commits

View all contributors on GitHub →

This article is auto-generated from jcv8000/Codex via the GitHub API.Last fetched: 6/28/2026