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var fontfacegen = require("fontfacegen")

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fontfacegen v0.4.0

Browser font-face generator for creating browser usable fonts from ttf's or otf's


From a ttf or otf, generate the required ttf, eot, woff, svg and css for the font to be used in browsers.


npm install --save-dev fontfacegen


  • fontforge

Installing on OS X

brew install fontforge

Other platforms

Help is required to get fontfacegen running on Window and Linux. Any documentation on running on these platforms would be greatly appreciated.


var fontfacegen = require('fontfacegen');

var result = fontfacegen({
    source: '/path/to/source.{ttf,otf}',
    dest: '/destination/folder/',


source (required):

Path to the source font file in ttf or otf format.

dest (required):

Path to the destination folder for the converted fonts to be placed in.


Path to the destination file to write the generated stylesheet to.

Default: null (Guess the css filename from the font filename)


Path to the font files relative to the css generated.

Default: ''


A string or array with the characters desired to be included inside the generated fonts

Default: null


Append the source filename to the destination directory in order to collate generated fonts into separate directories.

Default: false


options = {
    source: 'src/fonts/ariel.ttf',
    dest: 'dist/fonts/',
    collate: true

Will create fonts into 'dist/fonts/ariel/'.


Type: array Default: [] Valid values: ['woff', 'ttf']

Type of fonts to embed directly into the generated css file as a data-uri instead of creating files for them.

Font config files:

Font name, style and weight can be specified manually per font in a json file of the same name as the font.

For example, for the font: fonts/sans.ttf the config file would be: fonts/sans.json.

Example file format:

    "name"   : "Super Sans",
    "weight" : "400",
    "style"  : "normal"

Note: If present, the json config file must be valid json.

Complete example:

var fs          = require('fs');
var path        = require('path');
var fontfacegen = require('./fontfacegen');

var source = 'tmp/';
var dest   = 'tmp/dest/';
var fonts  = fs.readdirSync(source);

for (var i = fonts.length - 1; i >= 0; i--) {
    var font = fonts[i];
    var extension = path.extname(font);
    var fontname = path.basename(font, extension);

    // Test with embedded ttf
    if (extension == '.ttf' || extension == '.otf') {
            source: path.join(source, font),
            dest: dest,
            css_fontpath: '../fonts/',
            embed: ['ttf'],
            subset: 'abcdef',
            collate: true
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