# OTF Viewer

Free online OTF viewer. Open and preview OpenType fonts (.otf) directly in your browser — no upload, no software.

> Kanonische Seite: https://elysiatools.com/de/viewers/otf

- **Kategorie:** Diagramme

- **Unterstützte Formate:** .otf

## Überblick

This OTF viewer renders OpenType fonts directly in your browser. OTF (.otf, OpenType Font) is the modern font standard, supporting advanced typographic features like ligatures, alternate glyphs and small caps. Pick a sample font or choose your own .otf file to preview its glyphs and features instantly, with no upload.

## Wann verwenden

- You received an .otf font file and want to preview it.
- You need a quick, private preview of OpenType features and glyphs.
- You want to check font character coverage.

## Funktionsweise

- Select a built-in sample font or choose your own .otf file.
- The viewer parses the font in your browser using @font-face — nothing is uploaded.
- Preview the character map, sample text and OpenType features.

## Anwendungsfälle

- Previewing professional fonts before installation.
- Checking OpenType features (ligatures, alternates).
- Inspecting font design and glyph coverage.

## Beispiele

- **Schriftart New Computer Modern**: A OTF font file for in-browser preview

## Häufig gestellte Fragen

### What is an OTF file?

OTF (.otf, OpenType Font) is a font format jointly developed by Microsoft and Adobe in 1996 as the successor to TrueType. It supports cubic Bezier curves (PostScript outlines), advanced typographic features (ligatures, contextual alternates, small caps, old-style figures), and has comprehensive Unicode coverage.

### Are my OTF files uploaded?

No. Font files you open from your device stay on your device and are rendered locally. Only the public sample font is requested from the server.

### Which format should I use: TTF or OTF?

For modern use, OTF is generally preferred because it supports more advanced features and has better cross-platform compatibility. However, TTF may render better at small sizes due to superior hinting in some cases. Both formats are widely supported.

## Verwandte Inhalte

- [Draw.io-Viewer](https://elysiatools.com/de/viewers/drawio): Open and preview Draw.io diagrams (.drawio, .dio) directly in your browser — no upload, no software.
- [Excalidraw-Viewer](https://elysiatools.com/de/viewers/excalidraw): Open and preview Excalidraw diagrams (.excalidraw) directly in your browser — no upload, no software.
- [Mermaid-Viewer](https://elysiatools.com/de/viewers/mermaid): Open and preview Mermaid diagrams (.mermaid, .mmd) directly in your browser — no upload, no software.
- [PlantUML Viewer](https://elysiatools.com/de/viewers/plantuml): Open and preview PlantUML diagrams (.plantuml, .puml) directly in your browser — no upload, no software.
- [XMind Viewer](https://elysiatools.com/de/viewers/xmind): Open and preview XMind mind maps (.xmind) directly in your browser — no upload, no software.
- [GeoJSON Viewer](https://elysiatools.com/de/viewers/geojson): Open and preview GeoJSON geographic data (.geojson) directly in your browser — no upload, no software.