diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5491d15..b8ed301 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,7 @@
 project(librexy)
 cmake_minimum_required(VERSION 3.0.2)
 include(GNUInstallDirs)
+include(CMakeDependentOption)
 
 set(librexy_VERSION_STRING "000020000L")
 set(librexy_VERSION_MAJOR 0)
@@ -10,37 +11,52 @@ set(INCLUDE_PATH ${CMAKE_SOURCE_DIR}/include)
 include_directories(BEFORE SYSTEM "${INCLUDE_PATH}")
 
 
-option(ENABLE_SHARED "Build shared library" ON)
+cmake_dependent_option(ENABLE_SHARED "Build shared library" ON "NOT BUILD_HEADER_ONLY" OFF)
 option(ENABLE_PROFILING "Enable asan" OFF)
 option(BUILD_TESTS "Enable testing" OFF)
+option(BUILD_HEADER_ONLY "Enable header only build" OFF)
 mark_as_advanced(ENABLE_PROFILING)
 
-set(SOURCE_LIST "src/filerd.cpp" "src/string.cpp" "src/string_view.cpp" "src/threadpool.cpp" "src/demangle.cpp")
-add_library(ensure OBJECT "src/ensure.cpp")
-target_compile_options(ensure PRIVATE -Wall -Wextra -pedantic -std=c++20)
-if(ENABLE_SHARED)
-	add_library(rexy SHARED ${SOURCE_LIST})
-	set_target_properties(rexy PROPERTIES SOVERSION "${librexy_VERSION_MAJOR}.${librexy_VERSION_MINOR}")
-	set(LIBREXY_LIBFLAGS "-lrexy")
-	target_link_libraries(rexy "-lpthread")
-else()
-	add_library(rexy STATIC ${SOURCE_LIST})
-	set(LIBREXY_LIBFLAGS "-lrexy -lpthread")
-	target_link_libraries(rexy "-lpthread")
-endif()
-set_target_properties(rexy PROPERTIES VERSION "${librexy_VERSION_MAJOR}.${librexy_VERSION_MINOR}.${librexy_VERSION_REVISION}")
+set(LIBREXY_PUBLIC_HEADERS "include/rexy/rexy.hpp" "include/rexy/algorithm.hpp" "include/rexy/utility.hpp" "include/rexy/basic_string_hash.hpp" "include/rexy/hash.hpp" "include/rexy/string_view_hash.hpp" "include/rexy/string_hash.hpp" "include/rexy/mpmc_queue.hpp" "include/rexy/mpmc_queue.tpp" "include/rexy/traits.hpp" "include/rexy/steal.hpp" "include/rexy/expression.hpp" "include/rexy/string_base.hpp" "include/rexy/string.hpp" "include/rexy/string_base.tpp" "include/rexy/allocator.hpp" "include/rexy/meta.hpp" "include/rexy/buffer.hpp" "include/rexy/buffer.tpp" "include/rexy/debug_print.hpp" "include/rexy/deferred.hpp" "include/rexy/enum_traits.hpp" "include/rexy/storage_for.hpp" "include/rexy/storage_for.tpp" "include/rexy/visitor.hpp" "include/rexy/string_view.hpp" "include/rexy/string_view.tpp")
 
-if(ENABLE_PROFILING)
-	target_compile_options(rexy PRIVATE -fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls)
-	target_link_options(rexy PRIVATE -fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls)
+if(BUILD_HEADER_ONLY)
+	set(LIBREXY_BUILT_LIBRARY_HEADERS "")
+	set(librexy_HEADER_ONLY_BUILD 1)
+
+	add_library(rexy INTERFACE)
+	set(LIBREXY_LIBFLAGS "")
+else()
+	set(LIBREXY_BUILT_LIBRARY_HEADERS "include/rexy/filerd.hpp" "include/rexy/threadpool.hpp" "include/rexy/demangle.hpp")
+	set(librexy_HEADER_ONLY_BUILD 0)
+	set(SOURCE_LIST "src/filerd.cpp" "src/string.cpp" "src/string_view.cpp" "src/threadpool.cpp" "src/demangle.cpp")
+
+	if(ENABLE_SHARED)
+		add_library(rexy SHARED ${SOURCE_LIST})
+		set_target_properties(rexy PROPERTIES SOVERSION "${librexy_VERSION_MAJOR}.${librexy_VERSION_MINOR}")
+		set(LIBREXY_LIBFLAGS "-lrexy")
+		target_link_libraries(rexy "-lpthread")
+	else()
+		add_library(rexy STATIC ${SOURCE_LIST})
+		set(LIBREXY_LIBFLAGS "-lrexy -lpthread")
+		target_link_libraries(rexy "-lpthread")
+	endif()
+	set_target_properties(rexy PROPERTIES VERSION "${librexy_VERSION_MAJOR}.${librexy_VERSION_MINOR}.${librexy_VERSION_REVISION}")
+
+	if(ENABLE_PROFILING)
+		target_compile_options(rexy PRIVATE -fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls)
+		target_link_options(rexy PRIVATE -fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls)
+	endif()
+
+	target_compile_options(rexy PRIVATE -Wall -Wextra -pedantic -std=c++20)
 endif()
+
 if(BUILD_TESTS)
+	add_library(ensure OBJECT "src/ensure.cpp")
+	target_compile_options(ensure PRIVATE -Wall -Wextra -pedantic -std=c++20)
 	enable_testing()
 	add_subdirectory(tests)
 endif()
 
-set(LIBREXY_PUBLIC_HEADERS "include/rexy/rexy.hpp" "include/rexy/algorithm.hpp" "include/rexy/utility.hpp" "include/rexy/basic_string_hash.hpp" "include/rexy/hash.hpp" "include/rexy/string_view_hash.hpp" "include/rexy/string_hash.hpp" "include/rexy/mpmc_queue.hpp" "include/rexy/mpmc_queue.tpp" "include/rexy/traits.hpp" "include/rexy/steal.hpp" "include/rexy/expression.hpp" "include/rexy/string_base.hpp" "include/rexy/string.hpp" "include/rexy/filerd.hpp" "include/rexy/string_base.tpp" "include/rexy/allocator.hpp" "include/rexy/meta.hpp" "include/rexy/buffer.hpp" "include/rexy/buffer.tpp" "include/rexy/debug_print.hpp" "include/rexy/deferred.hpp" "include/rexy/demangle.hpp" "include/rexy/enum_traits.hpp" "include/rexy/storage_for.hpp" "include/rexy/storage_for.tpp" "include/rexy/visitor.hpp" "include/rexy/string_view.hpp" "include/rexy/string_view.tpp")
-target_compile_options(rexy PRIVATE -Wall -Wextra -pedantic -std=c++20)
 
 install(TARGETS rexy
 	ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
@@ -50,6 +66,7 @@ install(FILES "${CMAKE_CURRENT_SOURCE_DIR}/pc/librexy.pc"
         DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig"
 )
 install(FILES ${LIBREXY_PUBLIC_HEADERS} DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/rexy/")
+install(FILES ${LIBREXY_BUILT_LIBRARY_HEADERS} DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/rexy/")
 install(DIRECTORY "include/rexy/detail" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/rexy" FILES_MATCHING PATTERN "*.hpp" PATTERN "*.tpp")
 install(DIRECTORY "include/rexy/cx" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/rexy" FILES_MATCHING PATTERN "*.hpp" PATTERN "*.tpp")
 install(DIRECTORY "include/rexy/compat" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/rexy" FILES_MATCHING PATTERN "*.hpp" PATTERN "*.tpp")
diff --git a/include/rexy/filerd.hpp b/include/rexy/filerd.hpp
index e196da1..162bbea 100644
--- a/include/rexy/filerd.hpp
+++ b/include/rexy/filerd.hpp
@@ -29,6 +29,8 @@
 #include "rexy.hpp"
 #include "buffer.hpp"
 
+#ifndef LIBREXY_HEADER_ONLY
+
 namespace rexy{
 
 	//RAII wrapper for FILE*
@@ -73,4 +75,14 @@ namespace rexy{
 
 }
 
+#else //LIBREXY_HEADER_ONLY
+
+namespace rexy{
+
+	static_assert(false, "rexy::filerd is not available when built with header only support");
+
+}
+
+#endif //LIBREXY_HEADER_ONLY
+
 #endif
diff --git a/include/rexy/rexy.hpp.in b/include/rexy/rexy.hpp.in
index 10a26c1..4ee2b85 100644
--- a/include/rexy/rexy.hpp.in
+++ b/include/rexy/rexy.hpp.in
@@ -1,6 +1,6 @@
 /**
 	This file is a part of rexy's general purpose library
-	Copyright (C) 2021 rexy712
+	Copyright (C) 2021-2022 rexy712
 
 	This program is free software: you can redistribute it and/or modify
 	it under the terms of the GNU General Public License as published by
@@ -16,9 +16,19 @@
 	along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef REXY_REXY_HPP
-#define REXY_REXY_HPP
+#ifndef REXY_CONFIG_REXY_HPP
+#define REXY_CONFIG_REXY_HPP
+
+#define LIBREXY_BUILD_HEADER_ONLY @librexy_HEADER_ONLY_BUILD@
+
+#if LIBREXY_BUILD_HEADER_ONLY
+	#define LIBREXY_HEADER_ONLY 1
+#endif
 
 #define LIBREXY_VERSION @librexy_VERSION_STRING@
+#define LIBREXY_VERSION_MAJOR @librexy_VERSION_MAJOR@
+#define LIBREXY_VERSION_MINOR @librexy_VERSION_MINOR@
+#define LIBREXY_VERSION_REVISION @librexy_VERSION_REVISION@
+
 
 #endif
diff --git a/include/rexy/string.hpp b/include/rexy/string.hpp
index 2bf3a10..b5f4398 100644
--- a/include/rexy/string.hpp
+++ b/include/rexy/string.hpp
@@ -28,18 +28,12 @@ namespace rexy{
 	//new allocated string
 	using string = basic_string<char,allocator<char>>;
 
+#ifndef LIBREXY_HEADER_ONLY
 	extern template class basic_string<char,allocator<char>>;
 	extern template class basic_string<wchar_t,allocator<wchar_t>>;
 	extern template class basic_string<char16_t,allocator<char16_t>>;
 	extern template class basic_string<char32_t,allocator<char32_t>>;
-
-
-	using string_view = basic_string_view<char>;
-
-	extern template class basic_string_view<char>;
-	extern template class basic_string_view<wchar_t>;
-	extern template class basic_string_view<char16_t>;
-	extern template class basic_string_view<char32_t>;
+#endif
 
 }
 
diff --git a/include/rexy/string_base.hpp b/include/rexy/string_base.hpp
index 1478321..7c50f5f 100644
--- a/include/rexy/string_base.hpp
+++ b/include/rexy/string_base.hpp
@@ -706,11 +706,4 @@ namespace{
 
 }
 
-#ifdef REXY_BINARY_BASE_HPP
-#include "detail/binary_string_conv.hpp"
-#endif
-#ifdef REXY_HASH_HPP
-#include "static_string_hash.hpp"
-#endif
-
 #endif
diff --git a/include/rexy/string_view.hpp b/include/rexy/string_view.hpp
index b4cddc9..a09622f 100644
--- a/include/rexy/string_view.hpp
+++ b/include/rexy/string_view.hpp
@@ -23,6 +23,7 @@
 #include <iterator> //reverse_iterator
 
 #include "compat/constexpr.hpp"
+#include "rexy.hpp"
 
 namespace rexy{
 
@@ -101,8 +102,14 @@ namespace rexy{
 	template<class T>
 	basic_string_view(const T*, size_t) -> basic_string_view<T>;
 
-	template<class T>
-	using static_string [[deprecated]] = basic_string_view<T>;
+	using string_view = basic_string_view<char>;
+
+#ifndef LIBREXY_HEADER_ONLY
+	extern template class basic_string_view<char>;
+	extern template class basic_string_view<wchar_t>;
+	extern template class basic_string_view<char16_t>;
+	extern template class basic_string_view<char32_t>;
+#endif
 
 }
 
@@ -124,8 +131,14 @@ namespace{
 	std::ostream& operator<<(std::ostream& os, const rexy::basic_string_view<Char>& str){
 		return os << str.c_str();
 	}
+
 }
 
 #include "string_view.tpp"
 
+
+#ifdef REXY_HASH_HPP
+	#include "string_view_hash.hpp"
+#endif
+
 #endif
diff --git a/src/ensure.cpp b/src/ensure.cpp
index c59fc53..86e0dcd 100644
--- a/src/ensure.cpp
+++ b/src/ensure.cpp
@@ -1,11 +1,11 @@
 //Never actually used in the project. This just ensures that all syntax is correct during builds.
 
+#include "rexy/rexy.hpp"
 #include "rexy/algorithm.hpp"
 #include "rexy/allocator.hpp"
 #include "rexy/buffer.hpp"
 #include "rexy/buffer.tpp"
 #include "rexy/expression.hpp"
-#include "rexy/filerd.hpp"
 #include "rexy/hash.hpp"
 #include "rexy/mpmc_queue.hpp"
 #include "rexy/steal.hpp"
@@ -18,13 +18,18 @@
 #include "rexy/meta.hpp"
 #include "rexy/enum_traits.hpp"
 #include "rexy/deferred.hpp"
-#include "rexy/demangle.hpp"
 #include "rexy/debug_print.hpp"
 #include "rexy/storage_for.hpp"
 #include "rexy/visitor.hpp"
 #include "rexy/string_view.hpp"
 #include "rexy/string_view.tpp"
 
+#ifndef LIBREXY_HEADER_ONLY
+	#include "rexy/filerd.hpp"
+	#include "rexy/threadpool.hpp"
+	#include "rexy/demangle.hpp"
+#endif
+
 #include "rexy/detail/string_appender.hpp"
 
 #include "rexy/cx/array.hpp"