diff --git a/src/Magnum/Platform/GlfwApplication.cpp b/src/Magnum/Platform/GlfwApplication.cpp
index 1c8e7dcf0..3ac8c9e00 100644
--- a/src/Magnum/Platform/GlfwApplication.cpp
+++ b/src/Magnum/Platform/GlfwApplication.cpp
@@ -101,7 +101,7 @@ GlfwApplication::GlfwApplication(const Arguments& arguments, NoCreateT):
 
     /* Save command-line arguments */
     if(args.value("log") == "verbose") _verboseLog = true;
-    const std::string dpiScaling = args.value("dpi-scaling");
+    const Containers::String dpiScaling = args.value("dpi-scaling");
     if(dpiScaling == "default")
         _commandLineDpiScalingPolicy = Implementation::GlfwDpiScalingPolicy::Default;
     #ifdef CORRADE_TARGET_APPLE
@@ -113,7 +113,7 @@ GlfwApplication::GlfwApplication(const Arguments& arguments, NoCreateT):
     else if(dpiScaling == "physical")
         _commandLineDpiScalingPolicy = Implementation::GlfwDpiScalingPolicy::Physical;
     #endif
-    else if(dpiScaling.find_first_of(" \t\n") != std::string::npos)
+    else if(dpiScaling.find(' ') || dpiScaling.find('\t') || dpiScaling.find('\n'))
         _commandLineDpiScaling = args.value<Vector2>("dpi-scaling");
     else
         _commandLineDpiScaling = Vector2{args.value<Float>("dpi-scaling")};
@@ -243,8 +243,8 @@ Vector2 GlfwApplication::dpiScaling(const Configuration& configuration) {
     #endif
 }
 
-void GlfwApplication::setWindowTitle(const std::string& title) {
-    glfwSetWindowTitle(_window, title.data());
+void GlfwApplication::setWindowTitle(const Containers::StringView title) {
+    glfwSetWindowTitle(_window, String::nullTerminatedView(title).data());
 }
 
 #if GLFW_VERSION_MAJOR*100 + GLFW_VERSION_MINOR >= 302
@@ -348,7 +348,7 @@ bool GlfwApplication::tryCreate(const Configuration& configuration) {
     #endif
 
     /* Create the window */
-    _window = glfwCreateWindow(scaledWindowSize.x(), scaledWindowSize.y(), configuration.title().c_str(), monitor, nullptr);
+    _window = glfwCreateWindow(scaledWindowSize.x(), scaledWindowSize.y(), configuration.title().data(), monitor, nullptr);
     if(!_window) {
         Error() << "Platform::GlfwApplication::tryCreate(): cannot create window";
         glfwTerminate();
@@ -505,7 +505,7 @@ bool GlfwApplication::tryCreate(const Configuration& configuration, const GLConf
         glfwWindowHint(GLFW_VISIBLE, false);
     else if(_verboseLog)
         Warning{} << "Platform::GlfwApplication: Wayland detected, GL context has to be created with the window visible and may cause flicker on startup";
-    if((_window = glfwCreateWindow(scaledWindowSize.x(), scaledWindowSize.y(), configuration.title().c_str(), monitor, nullptr)))
+    if((_window = glfwCreateWindow(scaledWindowSize.x(), scaledWindowSize.y(), configuration.title().data(), monitor, nullptr)))
         glfwMakeContextCurrent(_window);
 
     #ifndef MAGNUM_TARGET_GLES
@@ -544,7 +544,7 @@ bool GlfwApplication::tryCreate(const Configuration& configuration, const GLConf
            just 2.1) and I assume on others as well. */
         glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, false);
 
-        _window = glfwCreateWindow(scaledWindowSize.x(), scaledWindowSize.y(), configuration.title().c_str(), monitor, nullptr);
+        _window = glfwCreateWindow(scaledWindowSize.x(), scaledWindowSize.y(), configuration.title().data(), monitor, nullptr);
     }
     #endif
 
@@ -909,12 +909,11 @@ GlfwApplication::Configuration::Configuration():
 GlfwApplication::Configuration::~Configuration() = default;
 
 #if defined(DOXYGEN_GENERATING_OUTPUT) || GLFW_VERSION_MAJOR*100 + GLFW_VERSION_MINOR >= 302
-std::string GlfwApplication::KeyEvent::keyName(const Key key) {
-    /* It can return null, so beware */
-    return Utility::String::fromArray(glfwGetKeyName(int(key), 0));
+Containers::StringView GlfwApplication::KeyEvent::keyName(const Key key) {
+    return glfwGetKeyName(int(key), 0);
 }
 
-std::string GlfwApplication::KeyEvent::keyName() const {
+Containers::StringView GlfwApplication::KeyEvent::keyName() const {
     return keyName(_key);
 }
 #endif
diff --git a/src/Magnum/Platform/GlfwApplication.h b/src/Magnum/Platform/GlfwApplication.h
index c28976458..8dd68cec8 100644
--- a/src/Magnum/Platform/GlfwApplication.h
+++ b/src/Magnum/Platform/GlfwApplication.h
@@ -32,9 +32,13 @@
  * @brief Class @ref Magnum::Platform::GlfwApplication, macro @ref MAGNUM_GLFWAPPLICATION_MAIN()
  */
 
-#include <string>
 #include <Corrade/Containers/ArrayView.h>
 #include <Corrade/Containers/Optional.h>
+#include <Corrade/Containers/String.h>
+#ifdef MAGNUM_BUILD_DEPRECATED
+/* Some APIs used to take or return a std::string before */
+#include <Corrade/Containers/StringStl.h>
+#endif
 
 #include "Magnum/Magnum.h"
 #include "Magnum/Tags.h"
@@ -474,7 +478,7 @@ class GlfwApplication {
          *
          * The @p title is expected to be encoded in UTF-8.
          */
-        void setWindowTitle(const std::string& title);
+        void setWindowTitle(Containers::StringView title);
 
         #if GLFW_VERSION_MAJOR*100 + GLFW_VERSION_MINOR >= 302 || defined(DOXYGEN_GENERATING_OUTPUT)
         /**
@@ -1219,7 +1223,7 @@ class GlfwApplication::Configuration {
         ~Configuration();
 
         /** @brief Window title */
-        std::string title() const { return _title; }
+        Containers::StringView title() const { return _title; }
 
         /**
          * @brief Set window title
@@ -1227,8 +1231,8 @@ class GlfwApplication::Configuration {
          *
          * Default is @cpp "Magnum GLFW Application" @ce.
          */
-        Configuration& setTitle(std::string title) {
-            _title = std::move(title);
+        Configuration& setTitle(Containers::StringView title) {
+            _title = Containers::String::nullTerminatedGlobalView(title);
             return *this;
         }
 
@@ -1368,7 +1372,7 @@ class GlfwApplication::Configuration {
         #endif
 
     private:
-        std::string _title;
+        Containers::String _title;
         Vector2i _size;
         WindowFlags _windowFlags;
         DpiScalingPolicy _dpiScalingPolicy;
@@ -1815,10 +1819,12 @@ class GlfwApplication::KeyEvent: public GlfwApplication::InputEvent {
          * Human-readable localized UTF-8 name for given @p key, intended for
          * displaying to the user in e.g. key binding configuration. If there
          * is no name for given key, empty string is returned.
+         * The returned string view is valid until the keyboard layout is changed
+         * or the GLFW application exits.
          * @see @ref keyName(Key)
          * @note Supported since GLFW 3.2.
          */
-        static std::string keyName(Key key);
+        static Containers::StringView keyName(Key key);
         #endif
 
         /** @copydoc Sdl2Application::KeyEvent::key() */
@@ -1832,10 +1838,12 @@ class GlfwApplication::KeyEvent: public GlfwApplication::InputEvent {
          * @ref key(), intended for displaying to the user in e.g.
          * key binding configuration. If there is no name for that key, empty
          * string is returned.
+         * The returned string view is valid until the keyboard layout is changed
+         * or the GLFW application exits.
          * @see @ref keyName(Key)
          * @note Supported since GLFW 3.2.
          */
-        std::string keyName() const;
+        Containers::StringView keyName() const;
         #endif
 
         /** @brief Modifiers */