QuickTeX

A phone-first LaTeX maths notebook. Maths renders in place as you type, snippets expand as you write, and a key row sits above the keyboard. It installs as an app and works fully offline.

Open it: https://unga-bunga-coder.github.io/QuickTeX/

Notes are saved on your device only. Use Export all notes in the menu to back them up.

Install

• iPhone: open the link in Safari, tap Share, then Add to Home Screen.
• Android: open the link in Chrome, tap ⋮, then Add to Home screen (or Install app).

Open it once while online so it's saved for offline use.

Develop

npm install
npm run build   # writes the site to dist/
npm test
python3 -m http.server -d dist

Every push to main builds, tests and deploys to GitHub Pages. See CLAUDE.md for how the code is laid out.

Credits

QuickTeX wouldn't exist without these people and projects.

Inspiration

• Gilles Castel, How I'm able to take notes in mathematics lectures using LaTeX and Vim. The snippet system (mk, dm, x1 → x_1, sr, //, ;a → α and friends) is adapted from his UltiSnips setup.
• SeniorMars, dotfiles / latex_template. The Vim + LaTeX note-taking workflow that started this project.
• artisticat1, Obsidian LaTeX Suite. The idea of a single pane where LaTeX renders in place as you type.

Built with

• CodeMirror 6 by Marijn Haverbeke and contributors (MIT). The editor and live preview.
• MathJax (Apache 2.0). Renders the maths.
• esbuild by Evan Wallace (MIT). Bundling.
• JetBrains Mono and STIX Two (SIL Open Font License 1.1). Fonts, self-hosted via Fontsource.

The site bundles copies of CodeMirror, MathJax and the fonts. Their licence notices ship with it in THIRD_PARTY_LICENSES.txt, generated by the build.