diff --git a/snippets/untildify.md b/snippets/untildify.md
new file mode 100644
index 000000000..67e51efe8
--- /dev/null
+++ b/snippets/untildify.md
@@ -0,0 +1,13 @@
+### untildify
+
+Converts a tilde path to an absolute path.
+
+Use `String.replace()` with a regular expression and `OS.homedir()` to replace the `~` in the start of the path with the home directory.
+
+```js
+const untildify = str => str.replace(/^~($|\/|\\)/, `${require('os').homedir()}$1`);
+```
+
+```js
+untildify('~/node') // '/Users/aUser/node'
+```
diff --git a/tag_database b/tag_database
index 64503984d..e66052213 100644
--- a/tag_database
+++ b/tag_database
@@ -161,6 +161,7 @@ truncateString:string
 truthCheckCollection:object
 unescapeHTML:string
 union:array
+untildify:node
 UUIDGeneratorBrowser:browser
 UUIDGeneratorNode:node
 validateNumber:utility