Tailwind Config Viewer

Tailwind Config Viewer is a local UI tool for visualizing your Tailwind CSS configuration file. Keep it open during development to quickly reference custom Tailwind values/classes. Easily navigate between sections of the configuration and copy class names to your clipboard by clicking on them.

Demo using the default Tailwind config

Installation

NPX

Run npx tailwind-config-viewer from within the directory that contains your Tailwind configuration file.

Globally

npm i tailwind-config-viewer -g

Locally

npm i tailwind-config-viewer -D

When installing locally, you can add an entry into the package.json scripts field to run and open the viewer:

"scripts": {
  "tailwind-config-viewer": "tailwind-config-viewer -o"
}

Usage

Run the tailwind-config-viewer command from within the directory that contains your Tailwind configuration file.

Commands

serve (default)

The serve command is the default command. Running tailwind-config-viewer is the same as tailwind-config-viewer serve.

Options

Option	Default	Description
-p, --port	`3000`	The port to run the viewer on. If occupied it will use next available port.
-o, --open	`false`	Open the viewer in default browser
-c, --config	`tailwind.config.js`	Path to your Tailwind config file

export

Exports the viewer to a directory that can be uploaded to a static host. It accepts the output directory path as its sole argument.

tailwind-config-viewer export ./output-dir

If an output directory isn't specificied it will be output to tcv-build.

Options

Option	Default	Description
-c, --config	`tailwind.config.js`	Path to your Tailwind config file

Configuration

You can declare a configViewer property in your Tailwind configuration's theme object in order to customize certain aspects of the config viewer.

module.exports = {
  theme: {
    // ...your Tailwind theme config
    configViewer: {
      // ... configViewer Options
    }
  }
}

themeReplacements

In some instances you may want to replace values used in your Tailwind config when it is displayed in the config viewer. One scenario where this is necessary is when you are using CSS variables for your theme values:

module.exports = {
  theme: {
    colors: {
      black: 'var(--color-black)'
    }
  }
}

In order for the config viewer to properly display this color, you need to provide a replacement for it:

module.exports = {
  theme: {
    colors: {
      black: 'var(--color-black)'
    },
    configViewer: {
      themeReplacements: {
        'var(--color-black)': '#000000'
      }
    }
  }
}

You can replace any value in your theme for display in the config viewer by setting the corresponding valueToFind: valueToReplace in the themeReplacements object.

baseFontSize

The config viewer displays the pixel equivalent of any rem values. By default baseFontSize is set to 16 to mirror the default root element font size in most browsers. If you plan on using a different root font size in your project, you should set the value of baseFontSize to match.

module.exports = {
  theme: {
    // ...your Tailwind theme config
    configViewer: {
      baseFontSize: 20 // default is 16
    }
  }
}

typographyExample

You can change the default sentence used in the typography sections (Font Size, Letter Spacing etc.) by setting the typographyExample option:

module.exports = {
  theme: {
    // ...your Tailwind theme config
    configViewer: {
      typographyExample: 'The quick brown fox jumps over the lazy dog.'
    }
  }
}

fonts

You can add custom fonts to the config viewer that are used in your Tailwind config by passing in a font url as a string, or an array of font urls.

Notes

If multiple font weights are provided in a single url (see example) only the last weight will be used.
If fonts are in your Tailwind theme config but urls are not provided they will not display correctly (currently with no warning).
Fonts can only be provided via urls not local files. If this something you need, please open a ticket or a pull request.

module.exports = {
  theme: {
    // ...your Tailwind theme config
    configViewer: {
      // single font
      fonts: "https://fonts.googleapis.com/css2?family=Open+Sans&display=swap"
      // or multiple fonts
      fonts: [
        "https://fonts.googleapis.com/css2?family=Open+Sans&display=swap",
        "https://fonts.googleapis.com/css2?family=Roboto:wght@100;500&display=swap" // <- only 500 will be used
      ]
        }
      ]
    }
  }
}

Usage Tips

Shift+Click on the Tailwind class names to copy multiple to your clipboard at once

Roadmap

Add static export
Add Transition section
Dark Mode toggle
Add support for loading custom fonts / font family section

rogden/tailwind-config-viewer