diff --git a/src/openrct2-ui/TextComposition.cpp b/src/openrct2-ui/TextComposition.cpp
index 834ab3bd68..1306940c0d 100644
--- a/src/openrct2-ui/TextComposition.cpp
+++ b/src/openrct2-ui/TextComposition.cpp
@@ -18,8 +18,7 @@
 #include <openrct2/common.h>
 #include <openrct2/core/Memory.hpp>
 #include <openrct2/core/String.hpp>
-#include <openrct2/localisation/Language.h>
-#include <openrct2/localisation/StringIdType.h>
+#include <openrct2/core/UTF8.h>
 
 #ifdef __MACOSX__
 // macOS uses COMMAND rather than CTRL for many keyboard shortcuts
diff --git a/src/openrct2-ui/interface/InGameConsole.cpp b/src/openrct2-ui/interface/InGameConsole.cpp
index 20601dad3d..c1eb790659 100644
--- a/src/openrct2-ui/interface/InGameConsole.cpp
+++ b/src/openrct2-ui/interface/InGameConsole.cpp
@@ -17,6 +17,7 @@
 #include <openrct2/Context.h>
 #include <openrct2/Version.h>
 #include <openrct2/config/Config.h>
+#include <openrct2/core/UTF8.h>
 #include <openrct2/drawing/Drawing.h>
 #include <openrct2/interface/Colour.h>
 #include <openrct2/interface/Window.h>
diff --git a/src/openrct2-ui/windows/TextInput.cpp b/src/openrct2-ui/windows/TextInput.cpp
index 99c0243096..5e74726f5a 100644
--- a/src/openrct2-ui/windows/TextInput.cpp
+++ b/src/openrct2-ui/windows/TextInput.cpp
@@ -14,8 +14,8 @@
 #include <openrct2-ui/windows/Window.h>
 #include <openrct2/Context.h>
 #include <openrct2/core/String.hpp>
+#include <openrct2/core/UTF8.h>
 #include <openrct2/drawing/Drawing.h>
-#include <openrct2/localisation/Formatter.h>
 #include <openrct2/localisation/Localisation.h>
 #include <openrct2/localisation/StringIds.h>
 #include <openrct2/util/Util.h>
diff --git a/src/openrct2/core/String.cpp b/src/openrct2/core/String.cpp
index 9b8b77e250..f60f73ee95 100644
--- a/src/openrct2/core/String.cpp
+++ b/src/openrct2/core/String.cpp
@@ -13,6 +13,7 @@
 #include <sstream>
 #include <stdexcept>
 #include <vector>
+
 #ifndef _WIN32
 #    if !defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(__OpenBSD__)
 #        include <alloca.h>
@@ -20,19 +21,15 @@
 #    include <unicode/ucnv.h>
 #    include <unicode/unistr.h>
 #    include <unicode/utypes.h>
-#endif
-
-#ifdef _WIN32
+#else
 #    include <windows.h>
 #endif
 
-#include "../common.h"
-#include "../localisation/ConversionTables.h"
-#include "../localisation/Language.h"
 #include "../util/Util.h"
 #include "Memory.hpp"
 #include "String.hpp"
 #include "StringBuilder.h"
+#include "UTF8.h"
 
 #if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
 #    include <strings.h>
diff --git a/src/openrct2/localisation/UTF8.cpp b/src/openrct2/core/UTF8.cpp
similarity index 98%
rename from src/openrct2/localisation/UTF8.cpp
rename to src/openrct2/core/UTF8.cpp
index bd5df3326f..834d4569d3 100644
--- a/src/openrct2/localisation/UTF8.cpp
+++ b/src/openrct2/core/UTF8.cpp
@@ -7,8 +7,7 @@
  * OpenRCT2 is licensed under the GNU General Public License version 3.
  *****************************************************************************/
 
-#include "Language.h"
-#include "Localisation.h"
+#include "UTF8.h"
 
 #include <cstring>
 #include <wchar.h>
diff --git a/src/openrct2/core/UTF8.h b/src/openrct2/core/UTF8.h
new file mode 100644
index 0000000000..6d38fb6821
--- /dev/null
+++ b/src/openrct2/core/UTF8.h
@@ -0,0 +1,48 @@
+/*****************************************************************************
+ * Copyright (c) 2014-2024 OpenRCT2 developers
+ *
+ * For a complete list of all authors, please refer to contributors.md
+ * Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
+ *
+ * OpenRCT2 is licensed under the GNU General Public License version 3.
+ *****************************************************************************/
+
+#pragma once
+
+#include "String.hpp"
+
+uint32_t UTF8GetNext(const utf8* char_ptr, const utf8** nextchar_ptr);
+bool UTF8IsCodepointStart(const utf8* text);
+int32_t UTF8GetCodepointLength(char32_t codepoint);
+int32_t UTF8Length(const utf8* text);
+
+utf8* GetStringEnd(const utf8* text);
+size_t GetStringSize(const utf8* text);
+
+constexpr utf8* UTF8WriteCodepoint(utf8* dst, uint32_t codepoint)
+{
+    if (codepoint <= 0x7F)
+    {
+        dst[0] = static_cast<utf8>(codepoint);
+        return dst + 1;
+    }
+    if (codepoint <= 0x7FF)
+    {
+        dst[0] = 0xC0 | ((codepoint >> 6) & 0x1F);
+        dst[1] = 0x80 | (codepoint & 0x3F);
+        return dst + 2;
+    }
+    if (codepoint <= 0xFFFF)
+    {
+        dst[0] = 0xE0 | ((codepoint >> 12) & 0x0F);
+        dst[1] = 0x80 | ((codepoint >> 6) & 0x3F);
+        dst[2] = 0x80 | (codepoint & 0x3F);
+        return dst + 3;
+    }
+
+    dst[0] = 0xF0 | ((codepoint >> 18) & 0x07);
+    dst[1] = 0x80 | ((codepoint >> 12) & 0x3F);
+    dst[2] = 0x80 | ((codepoint >> 6) & 0x3F);
+    dst[3] = 0x80 | (codepoint & 0x3F);
+    return dst + 4;
+}
diff --git a/src/openrct2/drawing/Drawing.String.cpp b/src/openrct2/drawing/Drawing.String.cpp
index 15d97d274c..583e7b7bd8 100644
--- a/src/openrct2/drawing/Drawing.String.cpp
+++ b/src/openrct2/drawing/Drawing.String.cpp
@@ -11,6 +11,7 @@
 #include "../common.h"
 #include "../config/Config.h"
 #include "../core/String.hpp"
+#include "../core/UTF8.h"
 #include "../drawing/IDrawingContext.h"
 #include "../drawing/IDrawingEngine.h"
 #include "../drawing/Text.h"
diff --git a/src/openrct2/drawing/Font.cpp b/src/openrct2/drawing/Font.cpp
index 846b14a018..c1c3a3829c 100644
--- a/src/openrct2/drawing/Font.cpp
+++ b/src/openrct2/drawing/Font.cpp
@@ -9,8 +9,9 @@
 
 #include "Font.h"
 
+#include "../Diagnostic.h"
+#include "../core/UTF8.h"
 #include "../localisation/FormatCodes.h"
-#include "../localisation/Language.h"
 #include "../localisation/LocalisationService.h"
 #include "../sprites.h"
 #include "../util/Util.h"
diff --git a/src/openrct2/drawing/Text.cpp b/src/openrct2/drawing/Text.cpp
index 60abc85e12..d89e151dc5 100644
--- a/src/openrct2/drawing/Text.cpp
+++ b/src/openrct2/drawing/Text.cpp
@@ -9,6 +9,7 @@
 
 #include "Text.h"
 
+#include "../core/UTF8.h"
 #include "../localisation/Formatter.h"
 #include "../localisation/Formatting.h"
 #include "../localisation/Localisation.h"
diff --git a/src/openrct2/interface/Chat.cpp b/src/openrct2/interface/Chat.cpp
index 4eb2bef613..9926121875 100644
--- a/src/openrct2/interface/Chat.cpp
+++ b/src/openrct2/interface/Chat.cpp
@@ -12,6 +12,7 @@
 #include "../Context.h"
 #include "../audio/AudioMixer.h"
 #include "../audio/audio.h"
+#include "../core/UTF8.h"
 #include "../drawing/Drawing.h"
 #include "../drawing/Text.h"
 #include "../localisation/Formatter.h"
diff --git a/src/openrct2/libopenrct2.vcxproj b/src/openrct2/libopenrct2.vcxproj
index d35b0a480b..086cc815e9 100644
--- a/src/openrct2/libopenrct2.vcxproj
+++ b/src/openrct2/libopenrct2.vcxproj
@@ -225,6 +225,7 @@
     <ClInclude Include="core\StringBuilder.h" />
     <ClInclude Include="core\StringReader.h" />
     <ClInclude Include="core\Timer.hpp" />
+    <ClInclude Include="core\UTF8.h" />
     <ClInclude Include="core\Zip.h" />
     <ClInclude Include="core\ZipStream.hpp" />
     <ClInclude Include="Date.h" />
@@ -752,6 +753,7 @@
     <ClCompile Include="core\String.cpp" />
     <ClCompile Include="core\StringBuilder.cpp" />
     <ClCompile Include="core\StringReader.cpp" />
+    <ClCompile Include="core\UTF8.cpp" />
     <ClCompile Include="core\Zip.cpp" />
     <ClCompile Include="core\ZipAndroid.cpp" />
     <ClCompile Include="Date.cpp" />
@@ -820,7 +822,6 @@
     <ClCompile Include="localisation\Localisation.Date.cpp" />
     <ClCompile Include="localisation\LocalisationService.cpp" />
     <ClCompile Include="localisation\RealNames.cpp" />
-    <ClCompile Include="localisation\UTF8.cpp" />
     <ClCompile Include="management\Award.cpp" />
     <ClCompile Include="management\Finance.cpp" />
     <ClCompile Include="management\Marketing.cpp" />
diff --git a/src/openrct2/localisation/Language.h b/src/openrct2/localisation/Language.h
index 1dff93dc8a..d9bbff487a 100644
--- a/src/openrct2/localisation/Language.h
+++ b/src/openrct2/localisation/Language.h
@@ -96,40 +96,7 @@ uint8_t LanguageGetIDFromLocale(const char* locale);
 const char* LanguageGetString(StringId id);
 bool LanguageOpen(int32_t id);
 
-uint32_t UTF8GetNext(const utf8* char_ptr, const utf8** nextchar_ptr);
-bool UTF8IsCodepointStart(const utf8* text);
-int32_t UTF8GetCodepointLength(char32_t codepoint);
-int32_t UTF8Length(const utf8* text);
-
 std::string RCT2StringToUTF8(std::string_view src, RCT2LanguageId languageId);
 bool LanguageGetLocalisedScenarioStrings(const utf8* scenarioFilename, StringId* outStringIds);
 void LanguageFreeObjectString(StringId stringId);
 StringId LanguageAllocateObjectString(const std::string& target);
-
-constexpr utf8* UTF8WriteCodepoint(utf8* dst, uint32_t codepoint)
-{
-    if (codepoint <= 0x7F)
-    {
-        dst[0] = static_cast<utf8>(codepoint);
-        return dst + 1;
-    }
-    if (codepoint <= 0x7FF)
-    {
-        dst[0] = 0xC0 | ((codepoint >> 6) & 0x1F);
-        dst[1] = 0x80 | (codepoint & 0x3F);
-        return dst + 2;
-    }
-    if (codepoint <= 0xFFFF)
-    {
-        dst[0] = 0xE0 | ((codepoint >> 12) & 0x0F);
-        dst[1] = 0x80 | ((codepoint >> 6) & 0x3F);
-        dst[2] = 0x80 | (codepoint & 0x3F);
-        return dst + 3;
-    }
-
-    dst[0] = 0xF0 | ((codepoint >> 18) & 0x07);
-    dst[1] = 0x80 | ((codepoint >> 12) & 0x3F);
-    dst[2] = 0x80 | ((codepoint >> 6) & 0x3F);
-    dst[3] = 0x80 | (codepoint & 0x3F);
-    return dst + 4;
-}
diff --git a/src/openrct2/localisation/Localisation.h b/src/openrct2/localisation/Localisation.h
index 12c863b897..4b5a553b26 100644
--- a/src/openrct2/localisation/Localisation.h
+++ b/src/openrct2/localisation/Localisation.h
@@ -26,9 +26,6 @@ void FormatReadableSize(char* buf, size_t bufSize, uint64_t sizeBytes);
  */
 void FormatReadableSpeed(char* buf, size_t bufSize, uint64_t sizeBytesPerSec);
 
-utf8* GetStringEnd(const utf8* text);
-size_t GetStringSize(const utf8* text);
-
 // The maximum number of characters allowed for string/money conversions (anything above will risk integer overflow issues)
 constexpr size_t kMoneyStringMaxlength = 14;
 money64 StringToMoney(const char* string_to_monetise);
diff --git a/src/openrct2/network/DiscordService.cpp b/src/openrct2/network/DiscordService.cpp
index ccfe7f095e..9cc8ed98fe 100644
--- a/src/openrct2/network/DiscordService.cpp
+++ b/src/openrct2/network/DiscordService.cpp
@@ -15,8 +15,8 @@
 #    include "../OpenRCT2.h"
 #    include "../core/Console.hpp"
 #    include "../core/String.hpp"
+#    include "../core/UTF8.h"
 #    include "../localisation/Formatting.h"
-#    include "../localisation/Localisation.h"
 #    include "../world/Park.h"
 #    include "network.h"
 
diff --git a/src/openrct2/paint/tile_element/Paint.LargeScenery.cpp b/src/openrct2/paint/tile_element/Paint.LargeScenery.cpp
index 05320a6d98..158e4cd541 100644
--- a/src/openrct2/paint/tile_element/Paint.LargeScenery.cpp
+++ b/src/openrct2/paint/tile_element/Paint.LargeScenery.cpp
@@ -14,8 +14,8 @@
 #include "../../config/Config.h"
 #include "../../core/Numerics.hpp"
 #include "../../core/String.hpp"
+#include "../../core/UTF8.h"
 #include "../../interface/Viewport.h"
-#include "../../localisation/Formatter.h"
 #include "../../localisation/Formatting.h"
 #include "../../localisation/Localisation.h"
 #include "../../localisation/StringIds.h"
diff --git a/src/openrct2/util/Util.cpp b/src/openrct2/util/Util.cpp
index 0f18aacac5..1c6dd305a0 100644
--- a/src/openrct2/util/Util.cpp
+++ b/src/openrct2/util/Util.cpp
@@ -12,9 +12,8 @@
 #include "../common.h"
 #include "../core/Guard.hpp"
 #include "../core/Path.hpp"
+#include "../core/UTF8.h"
 #include "../interface/Window.h"
-#include "../localisation/Language.h"
-#include "../localisation/Localisation.h"
 #include "../platform/Platform.h"
 #include "../scenes/title/TitleScene.h"
 #include "zlib.h"