StudyOS Notes

Fast class notes in Obsidian, made for keeping up with a teacher.

What it does

• / menu of study blocks. Type / at the start of a line: Part, Section, Definition, Example, Important, Exam tip, Exercise (numbered), Solution (folded), Theorem, Method, Summary, Self-test, Table, Formula, lists (bulleted, numbered, lettered), Code, Drawing (Excalidraw, if installed), Mind map (canvas), Divider. A few letters filter it: /def, /ex, /tab.
• Symbols by name. Type \sigma for σ, \in for ∈, \to for →. About 260 symbols: Greek, arrows, logic, sets, relations, operators, superscripts and subscripts, fractions, units. \ alone lists the ones already in the note, then your recent ones, then the likely ones.
• As you type: -> becomes →, => ⇒, <= ≤, >= ≥, != ≠, <-> ↔. x^2 becomes x², q_0 q₀, x^{n+1} xⁿ⁺¹. Ctrl+Z gives back what you typed.
• Numbered headings that stay in order: ## + space starts a part (I.), ### a section (1.), #### a subsection (1.1). Four styles: I. · 1. · 1.1 · 1.1.1, or 1. · 1.1 · 1.1.1, or I. · 1. · 1.a · 1.a.i, or I. · 1. · a) · i). On in class notes: notes with numbered: true (or type: lecture) in their properties, or every note if you choose it in the settings.
• Tables you can grow. /table picks the size on a grid. Hover a table for a bar to add or delete rows and columns.
• Lettered lists. a) then Enter gives b).
• A formatting bar over a selection: bold, highlight, italic, strike, code, superscript, subscript, math, clear.
• Callouts made for study: definition, theorem, method, exercise, solution, quiz.

Everything is plain Markdown. Turn off any part in the settings.

Screenshots

## + Space: a numbered part	/def: the blocks menu
\Sig: Σ and its neighbours	A finished note

Commands

Highlight the selection, insert a table, add a row below, add a column on the right, delete a row or column, renumber headings, insert a block. No default hotkeys: set your own in Settings > Hotkeys.

Install

Settings > Community plugins > Browse > search "StudyOS Notes" > Install > Enable.

StudyOS

StudyOS Notes is the note-taking part of StudyOS, a complete Obsidian vault for students: the lecture of the class going on in one keystroke, photos of the board turned into notes and filed in the right lecture, your timetable, deadlines, marks and reviews, NotebookLM per course, on the computer and the phone. See the StudyOS page for details.

Support

StudyOS Notes is free. If it saves you time in class, you can buy me a coffee: the Support button on this plugin's page in Obsidian (Settings > Community plugins).

Buy me a coffee

License

Source available under the PolyForm Noncommercial License 1.0.0: free for personal, study and other noncommercial use, including changing it for yourself. Selling it, or using it in a paid product, is not allowed without written permission from Y-Labs.

Build

npm run build writes main.js from src/ (no dependencies).