diff --git a/AK/FlyString.cpp b/AK/FlyString.cpp
index 8acc94d67ac..d1b31e14497 100644
--- a/AK/FlyString.cpp
+++ b/AK/FlyString.cpp
@@ -73,11 +73,6 @@ FlyString::FlyString(StringView const& string)
     }
 }
 
-FlyString::FlyString(const char* string)
-    : FlyString(static_cast<String>(string))
-{
-}
-
 template<typename T>
 Optional<T> FlyString::to_int() const
 {
diff --git a/AK/FlyString.h b/AK/FlyString.h
index ea3177eec8c..2db89366dfd 100644
--- a/AK/FlyString.h
+++ b/AK/FlyString.h
@@ -23,7 +23,10 @@ public:
     }
     FlyString(const String&);
     FlyString(const StringView&);
-    FlyString(const char*);
+    FlyString(const char* string)
+        : FlyString(static_cast<String>(string))
+    {
+    }
 
     FlyString& operator=(const FlyString& other)
     {
diff --git a/AK/String.cpp b/AK/String.cpp
index f8301e5bded..17eb0ac745c 100644
--- a/AK/String.cpp
+++ b/AK/String.cpp
@@ -15,11 +15,6 @@
 
 namespace AK {
 
-String::String(const StringView& view)
-{
-    m_impl = StringImpl::create(view.characters_without_null_termination(), view.length());
-}
-
 bool String::operator==(const FlyString& fly_string) const
 {
     return *this == String(fly_string.impl());
@@ -72,11 +67,6 @@ bool String::operator>(const String& other) const
     return strcmp(characters(), other.characters()) > 0;
 }
 
-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.
@@ -456,11 +446,6 @@ bool String::operator==(const char* cstring) const
     return !__builtin_strcmp(characters(), cstring);
 }
 
-StringView String::view() const
-{
-    return { characters(), length() };
-}
-
 InputStream& operator>>(InputStream& stream, String& string)
 {
     StringBuilder builder;
diff --git a/AK/String.h b/AK/String.h
index 0e11bcd7bb4..b1d453e60dc 100644
--- a/AK/String.h
+++ b/AK/String.h
@@ -42,7 +42,11 @@ public:
     ~String() = default;
 
     String() = default;
-    String(const StringView&);
+
+    String(const StringView& view)
+    {
+        m_impl = StringImpl::create(view.characters_without_null_termination(), view.length());
+    }
 
     String(const String& other)
         : m_impl(const_cast<String&>(other).m_impl)
@@ -203,7 +207,10 @@ public:
 
     [[nodiscard]] String isolated_copy() const;
 
-    [[nodiscard]] static String empty();
+    [[nodiscard]] static String empty()
+    {
+        return StringImpl::the_empty_stringimpl();
+    }
 
     [[nodiscard]] StringImpl* impl() { return m_impl.ptr(); }
     [[nodiscard]] const StringImpl* impl() const { return m_impl.ptr(); }
@@ -265,7 +272,10 @@ public:
         return formatted("{}", value);
     }
 
-    [[nodiscard]] StringView view() const;
+    [[nodiscard]] StringView view() const
+    {
+        return { characters(), length() };
+    }
 
     int replace(const String& needle, const String& replacement, bool all_occurrences = false);
     size_t count(const String& needle) const;