diff --git a/Userland/Libraries/LibMarkdown/Heading.cpp b/Userland/Libraries/LibMarkdown/Heading.cpp
index 11acf8efb6..8b526debe4 100644
--- a/Userland/Libraries/LibMarkdown/Heading.cpp
+++ b/Userland/Libraries/LibMarkdown/Heading.cpp
@@ -11,11 +11,7 @@ namespace Markdown {
 
 String Heading::render_to_html() const
 {
-    StringBuilder builder;
-    builder.appendf("<h%zu>", m_level);
-    builder.append(m_text.render_to_html());
-    builder.appendf("</h%zu>\n", m_level);
-    return builder.build();
+    return String::formatted("<h{}>{}</h{}>\n", m_level, m_text.render_to_html(), m_level);
 }
 
 String Heading::render_for_terminal(size_t) const
diff --git a/Userland/Libraries/LibMarkdown/List.cpp b/Userland/Libraries/LibMarkdown/List.cpp
index 04e385fcad..b23baed187 100644
--- a/Userland/Libraries/LibMarkdown/List.cpp
+++ b/Userland/Libraries/LibMarkdown/List.cpp
@@ -14,7 +14,7 @@ String List::render_to_html() const
     StringBuilder builder;
 
     const char* tag = m_is_ordered ? "ol" : "ul";
-    builder.appendf("<%s>", tag);
+    builder.appendff("<{}>", tag);
 
     for (auto& item : m_items) {
         builder.append("<li>");
@@ -22,7 +22,7 @@ String List::render_to_html() const
         builder.append("</li>\n");
     }
 
-    builder.appendf("</%s>\n", tag);
+    builder.appendff("</{}>\n", tag);
 
     return builder.build();
 }
@@ -35,7 +35,7 @@ String List::render_for_terminal(size_t) const
     for (auto& item : m_items) {
         builder.append("  ");
         if (m_is_ordered)
-            builder.appendf("%d. ", ++i);
+            builder.appendff("{}. ", ++i);
         else
             builder.append("* ");
         builder.append(item.render_for_terminal());
diff --git a/Userland/Libraries/LibMarkdown/Paragraph.cpp b/Userland/Libraries/LibMarkdown/Paragraph.cpp
index 90d015508b..d252fae464 100644
--- a/Userland/Libraries/LibMarkdown/Paragraph.cpp
+++ b/Userland/Libraries/LibMarkdown/Paragraph.cpp
@@ -12,7 +12,7 @@ namespace Markdown {
 String Paragraph::render_to_html() const
 {
     StringBuilder builder;
-    builder.appendf("<p>");
+    builder.append("<p>");
     bool first = true;
     for (auto& line : m_lines) {
         if (!first)
@@ -20,7 +20,7 @@ String Paragraph::render_to_html() const
         first = false;
         builder.append(line.text().render_to_html());
     }
-    builder.appendf("</p>\n");
+    builder.append("</p>\n");
     return builder.build();
 }
 
@@ -34,7 +34,7 @@ String Paragraph::render_for_terminal(size_t) const
         first = false;
         builder.append(line.text().render_for_terminal());
     }
-    builder.appendf("\n\n");
+    builder.append("\n\n");
     return builder.build();
 }
 
diff --git a/Userland/Libraries/LibMarkdown/Text.cpp b/Userland/Libraries/LibMarkdown/Text.cpp
index 7d363e8ab7..b399021589 100644
--- a/Userland/Libraries/LibMarkdown/Text.cpp
+++ b/Userland/Libraries/LibMarkdown/Text.cpp
@@ -72,7 +72,7 @@ String Text::render_to_html() const
                     current_style.img = {};
                     continue;
                 }
-                builder.appendf("</%s>", tag.characters());
+                builder.appendff("</{}>", tag);
                 if (tag == "a") {
                     current_style.href = {};
                     continue;
@@ -85,16 +85,16 @@ String Text::render_to_html() const
         }
         if (current_style.href.is_null() && !span.style.href.is_null()) {
             open_tags.append("a");
-            builder.appendf("<a href=\"%s\">", span.style.href.characters());
+            builder.appendff("<a href=\"{}\">", span.style.href);
         }
         if (current_style.img.is_null() && !span.style.img.is_null()) {
             open_tags.append("img");
-            builder.appendf("<img src=\"%s\" alt=\"", span.style.img.characters());
+            builder.appendff("<img src=\"{}\" alt=\"", span.style.img);
         }
         for (auto& tag_and_flag : tags_and_flags) {
             if (current_style.*tag_and_flag.flag != span.style.*tag_and_flag.flag) {
                 open_tags.append(tag_and_flag.tag);
-                builder.appendf("<%s>", tag_and_flag.tag.characters());
+                builder.appendff("<{}>", tag_and_flag.tag);
             }
         }
 
@@ -108,7 +108,7 @@ String Text::render_to_html() const
             builder.append("\" />");
             continue;
         }
-        builder.appendf("</%s>", tag.characters());
+        builder.appendff("</{}>", tag);
     }
 
     return builder.build();
@@ -153,13 +153,13 @@ String Text::render_for_terminal() const
             // non-absolute links, because the user has no
             // chance to follow them anyway.
             if (strstr(span.style.href.characters(), "://") != nullptr) {
-                builder.appendf(" <%s>", span.style.href.characters());
+                builder.appendff(" <{}>", span.style.href);
                 builder.append("\033]8;;\033\\");
             }
         }
         if (!span.style.img.is_null()) {
             if (strstr(span.style.img.characters(), "://") != nullptr) {
-                builder.appendf(" <%s>", span.style.img.characters());
+                builder.appendff(" <{}>", span.style.img);
             }
         }
     }