Autosave

Zettel

Zettel — German for a single page. One surface for writing, math, code, diagrams and HTML.

Drop a

text

.md

file anywhere on this page to open it. Press ⌘P to cycle preview, ⌘S to export, ⌘⇧P for PDF.

Math

\int_{- \infty}^{\infty} e^{- x^{2}} d x = π

Inline math like $E = m c^{2}$ and inline code like

text

const x = 42

flow naturally with prose.

python
import math
print("π ≈", math.pi)

ts
type Zettel<T> = { id: string; body: T };
const note: Zettel<string> = { id: "a1", body: "hello" };

diagram · mermaid

You can drop in raw HTML when markdown isn't enough — ⌘K, highlighted text, or a

collapsible block

with hidden content inside.

Less interface. More page.