diff --git a/index.html b/index.html
index f5520cb..7e4630c 100644
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+++ b/index.html
@@ -205,6 +205,8 @@ specific meanings.</p>
 <li>Nim: <a href="https://github.com/Patitotective/kdl-nim">kdl-nim</a></li>
 <li>Common Lisp: <a href="https://github.com/chee/kdlcl">kdlcl</a></li>
 <li>Go: <a href="https://github.com/lunjon/gokdl">gokdl</a>, <a href="https://github.com/sblinch/kdl-go">kdl-go</a></li>
+<li>Swift: <a href="https://github.com/danini-the-panini/kdl-swift">kdl-swift</a></li>
+<li>Crystal: <a href="https://github.com/danini-the-panini/kdl-cr">kdl-cr</a></li>
 </ul>
 <h2>Editor Support</h2>
 <ul>