livediagram gives you a curated set of eleven typefaces so a diagram can read as crisp, friendly, formal, or hand-drawn without becoming a font free-for-all. You can apply a font to one element or set it as the default for a whole tab, and the two levels work together so you only set what you actually want to override.
The Eleven Fonts
The set spans a deliberate spread of voices:
- Inter: a clean, neutral sans-serif for everyday diagrams.
- Poppins: a geometric sans with a modern feel.
- Nunito: a rounded sans that reads as friendly.
- Oswald: a condensed sans with headline presence.
- Space Grotesk: a grotesque sans with a technical edge.
- Lora: a serif for a more formal, editorial look.
- Abril Fatface: a high-contrast display serif for bold statements.
- Roboto Slab: a slab serif with extra weight and presence.
- Roboto Mono: a monospace, handy for code or technical labels.
- Caveat: a handwriting face for a sketched, informal feel.
- Permanent Marker: a marker-pen face for loud, hand-drawn emphasis.
Both pickers show each name in its own typeface, so you can see the voice before you choose it.
Setting a Font on One Element
Right-click the element (or press the More button on its toolbar, which is the way in on a touch screen), open Text, and expand Font. Click a tile to set that typeface on the element alone; with a mouse, hovering a tile previews it on the canvas first. The Text section only appears once the element has a label, so type something first. Select several elements and the same section sets the font on all of them at once.
Arrows are the exception: an arrow's Caption section covers bold, italic, underline, strikethrough, size and colour, but offers no font picker, so an arrow's caption follows the tab's font.
Setting a Tab Default
To set the typeface for everything on a tab at once, click the Theme & canvas button in the bottom-right corner of the editor to open the Tab Style dialog, and press Text under Fine-tune to open its panel. The Tab Style bar across the panel's top returns you to the dialog's home.
- Preview at the top shows a small sample diagram in the tab's font, size and finish.
- Typeface is a carousel of cards, six to a page, each showing its name in its own face. Picking one letters the whole tab in it at once: it becomes the tab's font, and any element that had its own font follows the tab again. Editor default clears the tab font, back to livediagram's built-in face.
- Size of New Text has the Text Size slider, from 6 to 48 pixels, with the Scale icon beside it. The preview follows the slider as you drag. Setting a size sets every label already on the tab to it, and each element you add from then on takes it too. A new document starts at Small, and a tab you add takes the font and size of the tab you added it from.
Every pick is an ordinary edit, so undo takes it back.
How the Levels Combine
Any piece of text resolves its font in order: an element's own font wins first, then the tab's default, then livediagram's built-in face. (Notes on an event storming board are the one twist: they are written in a marker face unless you give them a font of your own.) Arrows follow the same rules: there is no font picker for them, so they normally use the tab default, but a font applied another way (for example with the format painter) sticks to the arrow like any other override. This means you can set one tab-wide typeface and only override the few labels you want to stand out.
Fonts travel with your work: exports to PNG, SVG and PDF carry the faces you used.
Text stays visible in a fallback face while a font loads, so your diagram is always readable, even offline or where Google Fonts is blocked.
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