diff --git a/src/utils/html.rs b/src/utils/html.rs
new file mode 100644
index 00000000..4d0bf5ed
--- /dev/null
+++ b/src/utils/html.rs
@@ -0,0 +1,28 @@
+use std::string::String;
+
+// Escapes the string to be shown "as is" within the Telegram HTML message style.
+// Does not escape ' and " characters (as should be for usual HTML).
+// Because they shoudn't be escaped by the spec: https://core.telegram.org/bots/api#html-style
+pub fn escape(s: &str) -> String {
+    s.replace("&", "&")
+        .replace("<", "&lt;")
+        .replace(">", "&gt;")
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_escape() {
+        assert_eq!(
+            escape("  <title>Foo & Bar</title>   "),
+            "  &lt;title&gt;Foo &amp; Bar&lt;/title&gt;   "
+        );
+        assert_eq!(
+            escape("<p>你好 & 再見</p>"),
+            "&lt;p&gt;你好 &amp; 再見&lt;/p&gt;"
+        );
+        assert_eq!(escape("'foo\""), "'foo\"");
+    }
+}
diff --git a/src/utils.rs b/src/utils/markdown.rs
similarity index 51%
rename from src/utils.rs
rename to src/utils/markdown.rs
index afdda8dd..54f84090 100644
--- a/src/utils.rs
+++ b/src/utils/markdown.rs
@@ -1,18 +1,8 @@
 use std::string::String;
 
-// Escapes the string to be shown "as is" within the Telegram HTML message style.
-// Does not escape ' and " characters (as should be for usual HTML).
-// Because they shoudn't be escaped by the spec: https://core.telegram.org/bots/api#html-style
-pub fn escape_html(s: &str) -> String {
-    s.replace("&", "&amp;")
-        .replace("<", "&lt;")
-        .replace(">", "&gt;")
-        .to_string()
-}
-
 // Escapes all markdown special characters in the string
 // https://core.telegram.org/bots/api#markdownv2-style
-pub fn escape_markdown(s: &str) -> String {
+pub fn escape(s: &str) -> String {
     s.replace("_", r"\_")
         .replace("*", r"\*")
         .replace("[", r"\[")
@@ -33,12 +23,12 @@ pub fn escape_markdown(s: &str) -> String {
 }
 
 // Escapes all markdown special characters in the link URL (...)
-pub fn escape_markdown_link_url(s: &str) -> String {
+pub fn escape_link_url(s: &str) -> String {
     s.replace("`", r"\`").replace(")", r"\)")
 }
 
 // Escapes all markdown special characters in the code block
-pub fn escape_markdown_code_block(s: &str) -> String {
+pub fn escape_code_block(s: &str) -> String {
     s.replace(r"\", r"\\").replace("`", r"\`")
 }
 
@@ -47,44 +37,31 @@ mod tests {
     use super::*;
 
     #[test]
-    fn test_escape_html() {
+    fn test_escape_link_url() {
         assert_eq!(
-            escape_html("  <title>Foo & Bar</title>   "),
-            "  &lt;title&gt;Foo &amp; Bar&lt;/title&gt;   "
-        );
-        assert_eq!(
-            escape_html("<p>你好 & 再見</p>"),
-            "&lt;p&gt;你好 &amp; 再見&lt;/p&gt;"
-        );
-        assert_eq!(escape_html("'foo\""), "'foo\"");
-    }
-
-    #[test]
-    fn test_escape_markdown_link_url() {
-        assert_eq!(
-            escape_markdown_link_url(
+            escape_link_url(
                 r"https://en.wikipedia.org/wiki/Development+(Software)"
             ),
             r"https://en.wikipedia.org/wiki/Development+(Software\)"
         );
         assert_eq!(
-            escape_markdown_link_url(r"https://en.wikipedia.org/wiki/`"),
+            escape_link_url(r"https://en.wikipedia.org/wiki/`"),
             r"https://en.wikipedia.org/wiki/\`"
         );
         assert_eq!(
-            escape_markdown_link_url(r"_*[]()~`#+-=|{}.!\"),
+            escape_link_url(r"_*[]()~`#+-=|{}.!\"),
             r"_*[](\)~\`#+-=|{}.!\"
         );
     }
 
     #[test]
-    fn test_escape_markdown_code_block() {
+    fn test_escapecode_block() {
         assert_eq!(
-            escape_markdown_code_block(r"` \code inside the code\ `"),
+            escape_code_block(r"` \code inside the code\ `"),
             r"\` \\code inside the code\\ \`"
         );
         assert_eq!(
-            escape_markdown_code_block(r"_*[]()~\`#+-=|{}.!\"),
+            escape_code_block(r"_*[]()~\`#+-=|{}.!\"),
             r"_*[]()~\\\`#+-=|{}.!\\"
         );
     }
diff --git a/src/utils/mod.rs b/src/utils/mod.rs
new file mode 100644
index 00000000..06eba848
--- /dev/null
+++ b/src/utils/mod.rs
@@ -0,0 +1,2 @@
+pub mod html;
+pub mod markdown;