Notulee
Features

Small note. Big powers.

Notulee keeps the calm of a plain-text scratchpad, then quietly does the math, the conversions and the bookkeeping for you. Here’s everything it can do.

Markdown

Plain text that styles itself

Notulee speaks Markdown. Headings, bold, italics, lists, quotes and links render live as you type — and the markers stay in view, so your notes are always plain, portable text.

  • Headings, bold, italics, lists, quotes & links
  • Markers stay visible — nothing is hidden from you
  • Live regions (math, checklist, code) sit right inside the Markdown — code blocks syntax-highlighted across dozens of languages
  • Diagrams too — a ```graph region renders mermaid flowcharts & sequence diagrams in place, themed to match; click to edit the source
# Trip notes **Packing** — keep it light. - passport & charger - noise-cancelling buds > book the train early ## Budget
240 EUR to USD = 259.20 USD
trip notes2/19
Live math

A calculator that reads prose

Inside a math region, write numbers the way you’d say them — names, percentages and functions included. Results appear inline and recompute as you type. (Add a region with / → Math.)

  • Arithmetic, percentages and functions like ceil, round, powers
  • Phrases as names — after three letters they autocomplete
  • Always the same answer for the same input — deterministic, never a guess
# Pizza night
team : 7 pizzas : ceil(team / 2) slices : pizzas * 8 slices / team = 4.57 2 ^ 16 = 65,536
pizza night4/19
Currency & units

Convert without leaving the line

Money, distance, weight, temperature — in a math region, write to <unit> and Notulee converts in place. Exchange rates are fetched once and cached on your machine; you can pin custom rates too.

  • Currencies with locally-cached rates (works offline after first sync)
  • Physical units with dimension checking
  • Override any rate with your own
# Travel budget
4.50 USD to GBP = 3.56 GBP 2 km to mi = 1.24 mi 180 C to F = 356 F
Pin your own rate any time.
travel budget8/19
Live stocks

A ticker that lives in your maths Experimental

Reference a stock by its symbol with a $ — $AAPL, $SAP.DE — and Notulee fills in the latest price. From there it behaves like any other value: multiply by your shares, convert to another currency, total a position. Quotes are fetched on demand and cached, so editing a note doesn’t re-fetch on every keystroke.

  • $TICKER resolves to the latest price — hover for the quote and a refresh
  • Flows through the maths like a variable — $AAPL * 40, $AAPL to EUR
  • International symbols too ($SAP.DE, $7203.T); only the ticker leaves your machine, never your notes
# Portfolio
shares : 40 $AAPL = 232.10 USD shares * $AAPL = 9,284 USD (shares * $AAPL) to EUR = 8,560 EUR
Hover a ticker for the quote & a refresh.
portfolio9/19
Reactive variables

Name it once, reuse it everywhere

In a math region, assign a value with name : value and reuse it across your maths. Edit the source and every dependent total updates instantly — like a spreadsheet, but in prose.

  • Multi-word names (food budget per person)
  • Chained dependencies recompute in order
  • Units and currencies carry through the maths
# Party ledger
food budget per person : 35 number of guests : 11 food budget per person * number of guests = 385
Bump the budget and the total follows.
party ledger11/19
Checklists & lists

Track work without a project tool

Start a checklist region and tick items off. Notulee keeps a live count, so you always know what’s left — no app-switching, no syntax to learn.

  • Live progress count (1/3 done)
  • Completed items strike through
  • Mixes freely with prose and math
# DB research Pick a store for the metrics panel.
- [ ] benchmark a wide aggregation - [x] verify the DuckDB extension loads - [ ] write up the findings 1 / 3 done
db research13/19
Search & replace

Find anything in an instant

Press Ctrl+F for a fast in-note find that highlights every match live as you type, with replace and replace-all a keystroke away (Ctrl+H). Cross-note search (Ctrl+Shift+F) stays fast even with thousands of notes.

  • Live match highlighting — match case, whole word & regex
  • Replace & Replace All, with case preservation and undo
  • Searches every note at once — no index to maintain
# Find in notes search : /budget.*Q3/ 3 matches across 2 notes Party ledger — budget per person… Travel budget — budget for Q3…
find15/19
Files & sync

Every note is just a file

Each note is a plain Markdown file with simple frontmatter, named after its title and saved in a folder you choose. Open, edit, search, sync or back it up with any tool you like — Notulee keeps no database and locks nothing in.

  • Plain .md files you can read without Notulee — and you pick where they live
  • Edit them in Obsidian, your editor, even Claude — changes sync live, both ways, and Notulee can watch extra folders alongside your own (desktop)
  • Drop a .md in and it’s adopted; deletes move to a recoverable .trash/
~/Notulee/weekend-trip.md
--- title: Weekend trip pinned: true --- # Weekend trip - passport & charger - noise-cancelling buds Edit it in any app — Notulee syncs it back live.
Disappearing notes

Secrets that don’t stick around

Keep an API key, a password or a one-time code in a note that lives in memory only — never written to disk, never backed up. It self-destructs when you quit, after a timer, or the moment you switch away. Paste a secret and Notulee spots it first, and offers to tuck it somewhere temporary.

  • Memory-only notes that vanish on quit, on a timer, or “until I switch”
  • A live countdown warns before one disappears — Open or Extend, your call
  • Secret detection on paste catches keys & tokens before they land
# Stripe key sk_live_51M••••••••••••4242 Never written to disk. Never backed up. Vanishes on its own — no trace left.Vanishes in 4:33
stripe key1/19
Native desktop

A real app, built for the keyboard

Notulee is a real native app — not a browser tab. Summon it from anywhere with a global hotkey, pin it on top while you work, and trust it to open instantly. On Windows & macOS today, with iOS & Android to follow.

  • Global hotkey Ctrl+Alt+N to toggle the window
  • Pin-to-top and show/hide for quick capture
  • Light & dark themes, instant startup
# Quick capture Summoned with Ctrl+Alt+N — jot it and go.
- [x] pick the palette - [ ] wire the live demo - [ ] write the copy
quick capture1/19
live
And more

The small things, handled

Sums & averages

Aggregate a column of numbers into totals, averages and counts automatically.

Readability score

A live reading-ease score keeps your prose clear.

Export

Plain text, Markdown, a URL scheme, or a zip of every note.

Ephemeral by default

Notes stack, pin and soft-delete — a scratchpad, not a filing cabinet.

Automatic backups

A daily snapshot and one before every update, with a manager to apply, import or export them.

Adjustable zoom

Scale the whole app up or down — text, toolbar and all — and it’s remembered between runs.

Themes & textures

A gallery of hand-tuned themes with their own fonts, backgrounds and translucency — switch with Ctrl+Shift+T, or make your own on the web.

Dock the notes list

Pin the list to the left as an always-visible panel with Ctrl+B — the window grows to fit, so your note stays put.

Back & forward

Notulee remembers the notes you open, like a browser — step through with Alt+Left / Alt+Right or the mouse side buttons.

See it in action

Want to try all of this?

Take the demo for a spin in your browser — every feature, live. Native apps for Windows & macOS today.

Try it live