diff --git a/qutebrowser/app.py b/qutebrowser/app.py
index 1dce44c0f..99f356724 100644
--- a/qutebrowser/app.py
+++ b/qutebrowser/app.py
@@ -533,6 +533,15 @@ class Application(QApplication):
         qutescheme.pyeval_output = out
         self.mainwindow.tabs.cmd.openurl('qute:pyeval')
 
+    @cmdutils.register(instance='', debug=True)
+    def all_widgets(self):
+        """Print a list of all widgets to debug log."""
+        widgets = self.allWidgets()
+        log.misc.debug("{} widgets".format(len(widgets)))
+        widgets.sort(key=lambda e: repr(e))
+        for w in widgets:
+            log.misc.debug(w)
+
     @pyqtSlot()
     def shutdown(self):
         """Try to shutdown everything cleanly.
diff --git a/qutebrowser/widgets/completion.py b/qutebrowser/widgets/completion.py
index 08acc6200..f3b4112d6 100644
--- a/qutebrowser/widgets/completion.py
+++ b/qutebrowser/widgets/completion.py
@@ -112,6 +112,9 @@ class CompletionView(QTreeView):
         self.hide()
         # FIXME set elidemode
 
+    def __repr__(self):
+        return '<CompletionView>'
+
     def _resize_columns(self):
         """Resize the completion columns based on COLUMN_WIDTHS."""
         width = self.size().width()
diff --git a/qutebrowser/widgets/downloads.py b/qutebrowser/widgets/downloads.py
index cd401b053..ff124210b 100644
--- a/qutebrowser/widgets/downloads.py
+++ b/qutebrowser/widgets/downloads.py
@@ -60,6 +60,10 @@ class DownloadView(QListView):
         self.setContextMenuPolicy(Qt.CustomContextMenu)
         self.customContextMenuRequested.connect(self.show_context_menu)
 
+    def __repr__(self):
+        return '<DownloadView with {} downloads>'.format(
+            self.model().rowCount())
+
     @pyqtSlot('QPoint')
     def show_context_menu(self, point):
         """Show the context menu."""
diff --git a/qutebrowser/widgets/mainwindow.py b/qutebrowser/widgets/mainwindow.py
index 8a9023b1c..5bb5409ac 100644
--- a/qutebrowser/widgets/mainwindow.py
+++ b/qutebrowser/widgets/mainwindow.py
@@ -88,6 +88,9 @@ class MainWindow(QWidget):
         #self.tabWidget.setCurrentIndex(0)
         #QtCore.QMetaObject.connectSlotsByName(MainWindow)
 
+    def __repr__(self):
+        return '<MainWindow>'
+
     def _set_default_geometry(self):
         """Set some sensible default geometry."""
         self.setGeometry(QRect(50, 50, 800, 600))
diff --git a/qutebrowser/widgets/misc.py b/qutebrowser/widgets/misc.py
index 6ab2f07f8..240574f98 100644
--- a/qutebrowser/widgets/misc.py
+++ b/qutebrowser/widgets/misc.py
@@ -33,3 +33,6 @@ class MinimalLineEdit(QLineEdit):
                 background-color: transparent;
             }
         """)
+
+    def __repr__(self):
+        return '<{} "{}">'.format(self.__class__.__name__, self.text())
diff --git a/qutebrowser/widgets/statusbar/bar.py b/qutebrowser/widgets/statusbar/bar.py
index ea16cb5b4..a2f04cbb2 100644
--- a/qutebrowser/widgets/statusbar/bar.py
+++ b/qutebrowser/widgets/statusbar/bar.py
@@ -158,6 +158,9 @@ class StatusBar(QWidget):
         self.prog = Progress(self)
         self._hbox.addWidget(self.prog)
 
+    def __repr__(self):
+        return '<StatusBar>'
+
     @pyqtProperty(bool)
     def error(self):
         """Getter for self.error, so it can be used as Qt property."""
diff --git a/qutebrowser/widgets/statusbar/progress.py b/qutebrowser/widgets/statusbar/progress.py
index 8dcfc0bb9..d129e6c61 100644
--- a/qutebrowser/widgets/statusbar/progress.py
+++ b/qutebrowser/widgets/statusbar/progress.py
@@ -53,6 +53,9 @@ class Progress(QProgressBar):
         self.setTextVisible(False)
         self.hide()
 
+    def __repr__(self):
+        return '<Progress {}%>'.format(self.value())
+
     @pyqtSlot()
     def on_load_started(self):
         """Clear old error and show progress, used as slot to loadStarted."""
diff --git a/qutebrowser/widgets/statusbar/prompt.py b/qutebrowser/widgets/statusbar/prompt.py
index 5b56243b5..e9c20c4fc 100644
--- a/qutebrowser/widgets/statusbar/prompt.py
+++ b/qutebrowser/widgets/statusbar/prompt.py
@@ -63,6 +63,9 @@ class Prompt(QWidget):
         self._input = MinimalLineEdit()
         self._hbox.addWidget(self._input)
 
+    def __repr__(self):
+        return '<Prompt>'
+
     def on_mode_left(self, mode):
         """Clear and reset input when the mode was left."""
         if mode in ('prompt', 'yesno'):
diff --git a/qutebrowser/widgets/statusbar/textbase.py b/qutebrowser/widgets/statusbar/textbase.py
index 6baef2588..c3accb888 100644
--- a/qutebrowser/widgets/statusbar/textbase.py
+++ b/qutebrowser/widgets/statusbar/textbase.py
@@ -42,6 +42,9 @@ class TextBase(QLabel):
         self._elidemode = elidemode
         self._elided_text = ''
 
+    def __repr__(self):
+        return '<{} "{}">'.format(self.__class__.__name__, self.text())
+
     def _update_elided_text(self, width):
         """Update the elided text when necessary.
 
diff --git a/qutebrowser/widgets/tabbedbrowser.py b/qutebrowser/widgets/tabbedbrowser.py
index eb259b2bc..2ae863525 100644
--- a/qutebrowser/widgets/tabbedbrowser.py
+++ b/qutebrowser/widgets/tabbedbrowser.py
@@ -107,6 +107,9 @@ class TabbedBrowser(TabWidget):
         # FIXME adjust this to font size
         self.setIconSize(QSize(12, 12))
 
+    def __repr__(self):
+        return '<TabbedBrowser with {} tabs>'.format(self.count())
+
     @property
     def widgets(self):
         """Get a list of open tab widgets.
diff --git a/qutebrowser/widgets/tabwidget.py b/qutebrowser/widgets/tabwidget.py
index 9669f15c0..8b98248f4 100644
--- a/qutebrowser/widgets/tabwidget.py
+++ b/qutebrowser/widgets/tabwidget.py
@@ -123,6 +123,9 @@ class TabBar(QTabBar):
 
     """Custom tabbar to close tabs on right click."""
 
+    def __repr__(self):
+        return '<TabBar with {} tabs>'.format(self.count())
+
     def mousePressEvent(self, e):
         """Override mousePressEvent to emit tabCloseRequested on rightclick."""
         if e.button() != Qt.RightButton: