diff --git a/backends/imgui_impl_glfw.cpp b/backends/imgui_impl_glfw.cpp
index d0a75ac78438..d87010f10658 100644
--- a/backends/imgui_impl_glfw.cpp
+++ b/backends/imgui_impl_glfw.cpp
@@ -876,7 +876,7 @@ static void ImGui_ImplGlfw_UpdateGamepads()
 // - Some accessibility applications are declaring virtual monitors with a DPI of 0.0f, see #7902. We preserve this value for caller to handle.
 float ImGui_ImplGlfw_GetContentScaleForWindow(GLFWwindow* window)
 {
-#if GLFW_HAS_PER_MONITOR_DPI && !defined(__APPLE__)
+#if GLFW_HAS_PER_MONITOR_DPI && !(defined(__APPLE__) || defined(__EMSCRIPTEN__) || defined(__ANDROID__))
     float x_scale, y_scale;
     glfwGetWindowContentScale(window, &x_scale, &y_scale);
     return x_scale;
@@ -888,7 +888,7 @@ float ImGui_ImplGlfw_GetContentScaleForWindow(GLFWwindow* window)
 
 float ImGui_ImplGlfw_GetContentScaleForMonitor(GLFWmonitor* monitor)
 {
-#if GLFW_HAS_PER_MONITOR_DPI && !defined(__APPLE__)
+#if GLFW_HAS_PER_MONITOR_DPI && !(defined(__APPLE__) || defined(__EMSCRIPTEN__) || defined(__ANDROID__))
     float x_scale, y_scale;
     glfwGetMonitorContentScale(monitor, &x_scale, &y_scale);
     return x_scale;
diff --git a/backends/imgui_impl_sdl2.cpp b/backends/imgui_impl_sdl2.cpp
index 9f5e0374aaee..a319dc7e22da 100644
--- a/backends/imgui_impl_sdl2.cpp
+++ b/backends/imgui_impl_sdl2.cpp
@@ -718,7 +718,7 @@ float ImGui_ImplSDL2_GetContentScaleForWindow(SDL_Window* window)
 float ImGui_ImplSDL2_GetContentScaleForDisplay(int display_index)
 {
 #if SDL_HAS_PER_MONITOR_DPI
-#ifndef __APPLE__
+#if !defined(__APPLE__) && !defined(__EMSCRIPTEN__) && !defined(__ANDROID__)
     float dpi = 0.0f;
     if (SDL_GetDisplayDPI(display_index, &dpi, nullptr, nullptr) == 0)
         return dpi / 96.0f;
diff --git a/examples/example_glfw_opengl3/Makefile.emscripten b/examples/example_glfw_opengl3/Makefile.emscripten
index bba4ac9dc579..936bbacfd7d0 100644
--- a/examples/example_glfw_opengl3/Makefile.emscripten
+++ b/examples/example_glfw_opengl3/Makefile.emscripten
@@ -32,8 +32,9 @@ EMS =
 ##---------------------------------------------------------------------
 
 # ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
-EMS += -s DISABLE_EXCEPTION_CATCHING=1
-LDFLAGS += -s USE_GLFW=3 -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1
+# Note: For glfw, we use emscripten-glfw port (contrib.glfw3) instead of (-s USE_GLFW=3) to get a better support for High DPI displays.
+EMS += -s DISABLE_EXCEPTION_CATCHING=1 --use-port=contrib.glfw3
+LDFLAGS += -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1
 
 # Build as single file (binary text encoded in .html file)
 #LDFLAGS += -sSINGLE_FILE
diff --git a/examples/example_glfw_wgpu/Makefile.emscripten b/examples/example_glfw_wgpu/Makefile.emscripten
index 78d64b4d3179..8ee398bc8d9c 100644
--- a/examples/example_glfw_wgpu/Makefile.emscripten
+++ b/examples/example_glfw_wgpu/Makefile.emscripten
@@ -32,8 +32,9 @@ EMS =
 ##---------------------------------------------------------------------
 
 # ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
-EMS += -s DISABLE_EXCEPTION_CATCHING=1
-LDFLAGS += -s USE_GLFW=3 -s USE_WEBGPU=1
+# Note: For glfw, we use emscripten-glfw port (contrib.glfw3) instead of (-s USE_GLFW=3) to get a better support for High DPI displays.
+EMS += -s DISABLE_EXCEPTION_CATCHING=1 --use-port=contrib.glfw3
+LDFLAGS += -s USE_WEBGPU=1
 LDFLAGS += -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1
 
 # Build as single file (binary text encoded in .html file)