A Node.js script to build a SVG sprite from a folder of SVG files (typically icons).

npm install spritesh -g

gem install spritesh

Or you know, you can also just copy the script.

Usage: spritesh [options]
Script to build a SVG sprite from a folder of SVG files.
Options:
  -h, --help             Shows this help
  -q, --quiet            Disables informative output
  -i, --input [dir]      Specifies input dir (current dir by default)
  -o, --output [file]    Specifies output file ("./sprite.svg" by default)
  -v, --viewbox [str]    Specifies viewBox attribute (parsed by default)
  -p, --prefix [str]     Specifies prefix for id attribute (none by default)

1. Generate sprite.svg from SVG files in current folder (all defaults).

   spritesh

2. Generate sprite.svg from SVG files in assets/images/icons.

   spritesh --input assets/images/icons

3. Generate _includes/icons.svg from SVG files in current folder.

   spritesh --output _includes/icons.svg

4. Generate sprite.svg from SVG files in current folder with a view box of 0 0 16 16.

   spritesh --viewbox "0 0 16 16"

5. Generate sprite.svg from SVG files in current folder with id attributes prefixed with i_.

   spritesh --prefix i_

spritesh is a teeny tiny Bash script that takes care of SVG files concatenation; it does not perform any SVG optimisation. I recommend you add svgo (or similar tool) to your workflow to have an optimised and efficient SVG sprite.

An example that starts with improving the SVG files, then build a sprite could be:

svgo -f assets/images/icons && spritesh -i assets/images/icons

spritesh doesn’t help with SVG icons accessibility in itself. It is the responsibility of the developer (a.k.a you) to make sure the original icon files are including the relevant accessibility bits: a <title> tag with and id attribute.

For instance, a logo.svg icon could look like this:

<svg …>
  <title id="icon-brand-name">Your company/product name here</title>
  <!-- SVG content -->
</svg>

Which will generate this sprite (where icon- is the --prefix option):

<!-- sprite -->
<svg xmlns="http://www.w3.org/2000/svg" style="display: none;">
  <symbol id="icon-brand" viewBox="0 0 20 20">
    <svg …>
      <title id="icon-brand-name">Your company/product name here</title>
      <!-- SVG Content -->
    </svg>
  </symbol>
  <!-- Other symbols -->
</svg>

Later on, when using the sprite through <svg>/<use>, add an aria-labelledby attribute to the <svg> element referencing the relevant <title> id.

<svg class="logo" aria-labelledby="icon-brand-name">
  <use xlink:href="#icon-brand"></use>
</svg>