diff --git a/Editor/src/AssetManagement/Asset.h b/Editor/src/AssetManagement/Asset.h
index b8c66f3..dd62cf4 100644
--- a/Editor/src/AssetManagement/Asset.h
+++ b/Editor/src/AssetManagement/Asset.h
@@ -47,7 +47,7 @@ protected:
 			return ASSET_TYPE::File;
 		}
 		else {
-			std::cout << "unknown file!" << std::endl;
+			spdlog::warn("unknown file!");
 			return ASSET_TYPE::Unknown;
 		}
 	}
diff --git a/Editor/src/AssetManagement/AssetLoaders/ModelLoader.cpp b/Editor/src/AssetManagement/AssetLoaders/ModelLoader.cpp
index 112b37b..c6aa37d 100644
--- a/Editor/src/AssetManagement/AssetLoaders/ModelLoader.cpp
+++ b/Editor/src/AssetManagement/AssetLoaders/ModelLoader.cpp
@@ -94,11 +94,11 @@ Asset ModelLoader::LoadAsset(std::filesystem::path& path) {
 	aiNode* currentNode = scene->mRootNode;
 
 	
-	std::cout << "Loading meshes!" << std::endl;
+	spdlog::info("Loading meshes!" );
 
 	auto meshes = processNode(currentNode, scene);
 
-	std::cout << "Model file contained " << meshes.size() << " meshes" << std::endl;
+	spdlog::info("Model file contained {0} meshes", meshes.size() );
 
 
 
diff --git a/Editor/src/AssetManagement/AssetRegistry.cpp b/Editor/src/AssetManagement/AssetRegistry.cpp
index da457b6..d49332c 100644
--- a/Editor/src/AssetManagement/AssetRegistry.cpp
+++ b/Editor/src/AssetManagement/AssetRegistry.cpp
@@ -45,10 +45,10 @@ YoggieEngine::Mesh* AssetRegistry::LoadFromAssetFile(const std::filesystem::path
 		AssetFile.read((char*)&Enum, sizeof(uint32_t));
 
 		// print Header info 
-		std::cout << "File has header: " << Header << std::endl;
-		std::cout << "Vertex size: " << Vsize << std::endl;
-		std::cout << "Number of Vertices: " << Vnum << std::endl;
-		std::cout << "Number of Elements: " << Enum << std::endl;
+		spdlog::info("File has header: {0}", Header);
+		spdlog::info ( "Vertex size: {0}", Vsize );
+		spdlog::info("Number of Vertices: {0}" ,Vnum );
+		spdlog::info ("Number of Elements: " , Enum );
 		free(Header);
 
 
@@ -77,7 +77,7 @@ YoggieEngine::Mesh* AssetRegistry::LoadFromAssetFile(const std::filesystem::path
 
 	}
 	else {
-		std::cout << "Failed ot open mesh " << std::endl;
+		spdlog::error( "Failed ot open mesh " );
 	}
 
 	return imported;
@@ -92,7 +92,7 @@ YoggieEngine::Renderable* AssetRegistry::LoadFromSource(const std::filesystem::p
 	* 	auto model = (YoggieEngine::ModelImporter()).Import(srcPath.string());
 	YoggieEngine::Mesh* exportMesh = model->renderable->mesh;
 	std::filesystem::path MeshFileName = assetFolder / srcPath.filename().replace_extension(".mesh");
-	std::cout << "Save path: " << MeshFileName << std::endl;
+	spdlog::info( "Save path: {0}" , MeshFileName );
 
 	std::ofstream meshAsset;
 	meshAsset.open(MeshFileName, std::ios::binary);
@@ -102,8 +102,8 @@ YoggieEngine::Renderable* AssetRegistry::LoadFromSource(const std::filesystem::p
 		static const char* HEADER = "MESH";
 		meshAsset.write(HEADER, sizeof(HEADER));
 		auto Vsize = sizeof(YoggieEngine::Vertex);
-		std::cout << "size of vertex: " << Vsize << std::endl;
-		std::cout << "Addr of vSize: " << &Vsize << std::endl;
+		spdlog::info( "size of vertex: {0}" ,Vsize );
+		spdlog::info("Addr of vSize: {0}" , &Vsize );
 		auto Vnum = exportMesh->vertices.size();
 		auto Enum = exportMesh->elements.size();
 
diff --git a/Editor/src/AssetManagement/SceneSerializer.cpp b/Editor/src/AssetManagement/SceneSerializer.cpp
index d4c863e..c0b4531 100644
--- a/Editor/src/AssetManagement/SceneSerializer.cpp
+++ b/Editor/src/AssetManagement/SceneSerializer.cpp
@@ -6,7 +6,7 @@
 
 void WriteFile(std::string& emitter, std::filesystem::path path)
 {
-	std::cout << "Writing Scene file to: " << path.u8string() << std::endl;
+	spdlog::info( "Writing Scene file to: {0}" , path.u8string());
 	std::ofstream sceneFile;
 	sceneFile.open(path.u8string());
 
diff --git a/Editor/src/Dialog.h b/Editor/src/Dialog.h
index e09566d..148571f 100644
--- a/Editor/src/Dialog.h
+++ b/Editor/src/Dialog.h
@@ -31,9 +31,9 @@ public:
                     location = std::string(path);
                     break;
                 case(NFD_CANCEL):
-                    std::cout << "NFD_CANCEL" << std::endl;
+                    spdlog::info("NFD_CANCEL" );
                 case (NFD_ERROR):
-                    std::cout << "NFD_Error: " << NFD_GetError() << std::endl;
+                    spdlog::error("NFD_Error: {0}" , NFD_GetError() );
                     break;
 
                 };
diff --git a/Editor/src/EditorLayer.h b/Editor/src/EditorLayer.h
index 1fabb0e..9e2f207 100644
--- a/Editor/src/EditorLayer.h
+++ b/Editor/src/EditorLayer.h
@@ -40,10 +40,10 @@ public:
         AssetRegistry assetManager = AssetRegistry();
         ModelLoader modelLoader = ModelLoader();
 
-        std::cout << project.GetProjectDirectory() << std::endl;
+        spdlog::info( "{0}", project.GetProjectDirectory().string());
 
         auto latern = modelLoader.LoadAsset(std::filesystem::path("build/debug/Models/Latern.gltf"));
-        std::cout << "Loaded mesh: " << latern.GetName() << std::endl;
+        spdlog::info( "Loaded mesh: {0}" , latern.GetName() );
 
         //ProjectInfo projectInfo(project);
         //Settings settings = Settings();
@@ -61,7 +61,7 @@ public:
 		if (sceneview.isFocused) {
 			UpdateSceneCamera(sceneview);
 
-			std::cout << "Scene view in Focus!\r";
+			spdlog::info( "Scene view in Focus!\r");
 		}
 
 	}
@@ -95,12 +95,12 @@ public:
 
 	
 	void OnCreate() override {
-		std::cout << " Layer Create!" << std::endl;
+		spdlog::info(" Layer Create!" );
 
 	}
 
 	void OnDestroy() override {
-		std::cout << " Layer Destroy!" << std::endl;
+		spdlog::info( " Layer Destroy!" );
 
 	}
 
diff --git a/Editor/src/MainMenuBar.cpp b/Editor/src/MainMenuBar.cpp
index d78b539..11d2914 100644
--- a/Editor/src/MainMenuBar.cpp
+++ b/Editor/src/MainMenuBar.cpp
@@ -25,7 +25,7 @@ void MainMenuBar::ApplicationMenu(Project& project) {
             case(NFD_CANCEL):
                 break;
             case(NFD_ERROR):
-                std::cout << "NFD_Error: " << NFD_GetError() << std::endl;
+                spdlog::error( "NFD_Error: {0}" , NFD_GetError() );
                 break;
             }
 
@@ -35,13 +35,13 @@ void MainMenuBar::ApplicationMenu(Project& project) {
             nfdresult_t result = NFD_SaveDialog({ "yproj" }, NULL, &path);
             switch (result) {
             case(NFD_OKAY):
-                std::cout << "Save as: " << path << std::endl;
+                spdlog::info( "Save as: {0}" , path );
                 Project::SaveProject(path, project);
                 break;
             case(NFD_CANCEL):
                 break;
             case(NFD_ERROR):
-                std::cout << "NFD_Error: " << NFD_GetError() << std::endl;
+                spdlog::error( "NFD_Error: {0}" , NFD_GetError() );
                 break;
             }
         }
diff --git a/Editor/src/Project/Project.h b/Editor/src/Project/Project.h
index 35dff87..8ccac7a 100644
--- a/Editor/src/Project/Project.h
+++ b/Editor/src/Project/Project.h
@@ -9,7 +9,7 @@ class Project {
 public:
 	Project() = default;
 	Project(const std::string& name): Name(name){}
-	~Project() { std::cout << "Unloading project..." << Name << std::endl; }
+	~Project() { spdlog::info("Unloading project {0}...", Name);}
 
 	void setName(std::string& name) { Name = name; }
 	const std::string& GetName()const { return Name; }
diff --git a/YoggieEngine/src/PerfCounter.cpp b/YoggieEngine/src/PerfCounter.cpp
index e9e989f..04154c3 100644
--- a/YoggieEngine/src/PerfCounter.cpp
+++ b/YoggieEngine/src/PerfCounter.cpp
@@ -9,7 +9,7 @@ namespace YoggieEngine {
 
 	void EngineInstrumentation::PerfomanceSamplerInit() {
 
-		std::cout << "Initialize perf sampler" << std::endl;
+		spdlog::info( "Initialize perf sampler" );
 		/*EngineInstrumentation::frames = 0;
 		EngineInstrumentation::lastSampleTime = GetPrecisionTime();*/
 	}