diff --git a/AK/String.cpp b/AK/String.cpp
index ab7f3dbcc0..4cb7f874ea 100644
--- a/AK/String.cpp
+++ b/AK/String.cpp
@@ -106,6 +106,18 @@ String String::empty()
     return StringImpl::the_empty_stringimpl();
 }
 
+bool String::copy_characters_to_buffer(char* buffer, size_t buffer_size) const
+{
+    // We must fit at least the NUL-terminator.
+    ASSERT(buffer_size > 0);
+
+    size_t characters_to_copy = min(length(), buffer_size - 1);
+    __builtin_memcpy(buffer, characters(), characters_to_copy);
+    buffer[characters_to_copy] = 0;
+
+    return characters_to_copy == length();
+}
+
 String String::isolated_copy() const
 {
     if (!m_impl)
diff --git a/AK/String.h b/AK/String.h
index 1fcd6de7f1..1ddbd9b40e 100644
--- a/AK/String.h
+++ b/AK/String.h
@@ -146,6 +146,8 @@ public:
     // Includes NUL-terminator, if non-nullptr.
     ALWAYS_INLINE const char* characters() const { return m_impl ? m_impl->characters() : nullptr; }
 
+    [[nodiscard]] bool copy_characters_to_buffer(char* buffer, size_t buffer_size) const;
+
     ALWAYS_INLINE ReadonlyBytes bytes() const { return m_impl ? m_impl->bytes() : nullptr; }
 
     ALWAYS_INLINE const char& operator[](size_t i) const