diff --git a/snippets/escapeString.md b/snippets/escapeString.md
new file mode 100644
index 000000000..a1bf2fc7f
--- /dev/null
+++ b/snippets/escapeString.md
@@ -0,0 +1,14 @@
+### escapeString
+
+Escapes a string for use in HTML.
+
+Use a chain of `String.replace()` calls combined with regular expressions to replace special characters with the proper symbols.
+
+```js
+const escapeString = str =>
+  str.replace(/&/g, '&amp;').replace(/"/g, '&quot;').replace(/'/g, '&#39;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+```
+
+```js
+escapeString('<a href="#">Me & you</a>'); // '&lt;a href=&quot;#&quot;&gt;Me &amp; you&lt;/a&gt;'
+```
diff --git a/snippets/unescapeString.md b/snippets/unescapeString.md
new file mode 100644
index 000000000..5e6e14a01
--- /dev/null
+++ b/snippets/unescapeString.md
@@ -0,0 +1,14 @@
+### unescapeString
+
+Unescapes a string from HTML.
+
+Use a chain of `String.replace()` calls combined with regular expressions to replace special characters with the proper symbols.
+
+```js
+const unescapeString = str =>
+  str.replace(/&gt;/g, '>').replace(/&lt;/g, '<').replace(/&#39;/g, '\'').replace(/&quot;/g, '"').replace(/&amp;/g, '&');
+```
+
+```js
+unescapeString('&lt;a href=&quot;#&quot;&gt;Me &amp; you&lt;/a&gt;'); // '<a href="#">Me & you</a>'
+```
diff --git a/tag_database b/tag_database
index 5c3a9153b..e8874cf82 100644
--- a/tag_database
+++ b/tag_database
@@ -1,6 +1,6 @@
 anagrams:string
 arrayToHtmlList:browser
-average:uncategorized
+average:math
 bottomVisible:browser
 call:adapter
 capitalize:string
@@ -30,6 +30,7 @@ dropElements:array
 dropRight:array
 elementIsVisibleInViewport:browser
 escapeRegExp:string
+escapeString:string
 everyNth:array
 extendHex:utility
 factorial:math
@@ -76,9 +77,9 @@ JSONToFile:node
 last:array
 lcm:math
 mapObject:array
-max:uncategorized
+max:math
 median:math
-min:uncategorized
+min:math
 negate:logic
 nthElement:array
 objectFromPairs:object
@@ -120,7 +121,7 @@ sortCharactersInString:string
 speechSynthesis:media
 spreadOver:adapter
 standardDeviation:math
-sum:uncategorized
+sum:math
 symmetricDifference:array
 tail:array
 take:array
@@ -136,6 +137,7 @@ toOrdinalSuffix:utility
 toSnakeCase:string
 truncateString:string
 truthCheckCollection:object
+unescapeString:string
 union:array
 UUIDGeneratorBrowser:browser
 UUIDGeneratorNode:node