Caliu offers a curated catalog of 30 fonts: 29 hand-picked typefaces plus your device's system font, organized into three categories: sans serif, serif, and monospace. The same catalog is available on every platform, so a font you love on the Mac renders identically on the web.
How it works
Font settings have two layers:
- Your category picks. Choose your preferred sans serif, serif, and monospace font. Think of these as "my sans", "my serif", and "my mono".
- Per-surface tuning. Four surfaces make up the app: the interface (sidebar, lists, menus), body text in the editor, headings, and code. Each surface follows its natural category by default, but you can pin any specific font to any surface.
Out of the box, the interface uses Plus Jakarta Sans, body text and headings use Lora, and code uses JetBrains Mono.
Change your fonts
- In the web app: open the user menu at the bottom of the sidebar and choose Typography.
- In the iPhone and iPad app: go to Settings, then Typography.
- In the Mac app: open Settings, then Typography.
The picker shows live specimens of every font, so you can browse until something feels right.
Body size, line height, and spacing
Beyond font choice, you can tune how the body text sits on the page: a body size from XS up to XXL, a line height from Snug to Loose, and a paragraph spacing from Snug to Loose. Find these on the web in the editor's toolbar, and on iPhone, iPad, and Mac in the same Typography settings screen as your fonts. They apply across every note, on top of whatever fonts you have chosen.
Line breaks and markdown-style Enter
Press Shift+Enter to add a line break inside a paragraph without starting a new one, or just leave two spaces at the end of a line before pressing Enter. Either way, Caliu writes a plain line break to the note, so it looks the same on every device.
If you would rather type the way plain markdown editors do, turn on markdown-style Enter: a single Enter then adds a line break, and it takes two Enters in a row to start a new paragraph. It is off by default, and the choice is per device. Find the toggle in the Typography popover on the web, and in Settings, then Advanced, on iPhone, iPad, and Mac.