The Cysill Ar-lein widget can add Welsh language spelling and grammar checker capabilities to your website. The widget uses the Cysill Ar-lein API. Follow the steps below in order to add this widget :

• Add the following two <script> tags to your website’s code. The first with your API Key, and the second with the URL to Cysill Ar-lein (N.B. you will need to register for your API key and input it instead of ‘YOUR_API_KEY’. See ‘How to register for an API key‘) :

  <script>
          var CYSILL_API_KEY = "YOUR_API_KEY";
  </script>
  <meta name="gwt:property" content="locale=cy" />
  <script type="text/javascript" language="javascript" src="https://api.techiaith.org/cysill/ui/CysillArlein/CysillArlein.nocache.js"></script>

• Add a <div> with id=CysillArleinApp anywhere in your webpage:

  <div id="fy_nhudalen">
  <div id='CysillArleinApp'></div>
  </div>

You can find more information about this service, including documentation and demos, here. To see an example of this widget being used, follow this link to the popular Cysill Ar-lein page.