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Set a custom font for your entire site or separately for headings and body text. Use Google Fonts, local font files, or externally hosted fonts. The default font varies by theme. Fonts are controlled by the fonts property in your docs.json.

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Google Fonts

Mintlify automatically loads Google Fonts when you specify a font family name in your docs.json.
docs.json
{
  "fonts": {
    "family": "Inter"
  }
}
No additional configuration is needed for Google Fonts. Simply specify the font family name and Mintlify handles the rest.

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Local fonts

To use local fonts, place your font files in your project directory and reference them in your docs.json configuration.

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Setting up local fonts

1

Add font files to your project

Create a fonts directory in your project and add your font files:
your-project/
├── fonts/
│   ├── InterDisplay-Regular.woff2
│   └── InterDisplay-Bold.woff2
├── docs.json
└── ...
2

Configure fonts in docs.json

Reference your local fonts using relative paths from your project root:
docs.json
{
  "fonts": {
    "family": "InterDisplay",
    "source": "/fonts/InterDisplay-Regular.woff2",
    "format": "woff2",
    "weight": 400
  }
}

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Local fonts for headings and body

Configure separate local fonts for headings and body text in your docs.json:
docs.json
{
  "fonts": {
    "heading": {
      "family": "InterDisplay",
      "source": "/fonts/InterDisplay-Bold.woff2",
      "format": "woff2",
      "weight": 700
    },
    "body": {
      "family": "InterDisplay",
      "source": "/fonts/InterDisplay-Regular.woff2",
      "format": "woff2",
      "weight": 400
    }
  }
}
When specifying separate fonts for headings and body, both configurations must include all required fields (family, source, format, and weight).

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Externally hosted fonts

Use externally hosted fonts by referencing a font source URL in your docs.json:
docs.json
{
  "fonts": {
    "family": "Hubot Sans",
    "source": "https://mintlify-assets.b-cdn.net/fonts/Hubot-Sans.woff2",
    "format": "woff2",
    "weight": 400
  }
}
Externally hosted fonts should use HTTPS URLs and support CORS to ensure they load correctly across all browsers.

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Font configuration reference

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fonts
object
Font configuration for your documentation.

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