diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 29ba91045..997ac06ef 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -42,6 +42,7 @@ add_library(neochat STATIC
     completionproxymodel.cpp
     actionsmodel.cpp
     serverlistmodel.cpp
+    statemodel.cpp
 )
 
 add_executable(neochat-app
diff --git a/src/controller.cpp b/src/controller.cpp
index 18263a277..9e5723e38 100644
--- a/src/controller.cpp
+++ b/src/controller.cpp
@@ -847,3 +847,13 @@ int Controller::activeConnectionIndex() const
     return 0;
 #endif
 }
+
+int Controller::quotientMinorVersion() const
+{
+// TODO libQuotient 0.7: Replace with version function from libQuotient
+#ifdef QUOTIENT_07
+    return 7;
+#else
+    return 6;
+#endif
+}
diff --git a/src/controller.h b/src/controller.h
index 38193a235..067999e52 100644
--- a/src/controller.h
+++ b/src/controller.h
@@ -42,6 +42,7 @@ class Controller : public QObject
     Q_PROPERTY(bool isOnline READ isOnline NOTIFY isOnlineChanged)
     Q_PROPERTY(bool encryptionSupported READ encryptionSupported CONSTANT)
     Q_PROPERTY(int activeConnectionIndex READ activeConnectionIndex NOTIFY activeConnectionIndexChanged)
+    Q_PROPERTY(int quotientMinorVersion READ quotientMinorVersion CONSTANT)
 
 public:
     static Controller &instance();
@@ -104,6 +105,8 @@ public:
 
     Q_INVOKABLE void setApplicationProxy();
 
+    int quotientMinorVersion() const;
+
 private:
     explicit Controller(QObject *parent = nullptr);
 
diff --git a/src/main.cpp b/src/main.cpp
index f7108aa4d..490c12e26 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -81,6 +81,7 @@
 #endif
 #include "completionmodel.h"
 #include "neochatuser.h"
+#include "statemodel.h"
 
 #ifdef HAVE_RUNNER
 #include "runner.h"
@@ -214,6 +215,7 @@ int main(int argc, char *argv[])
     qmlRegisterType<DevicesModel>("org.kde.neochat", 1, 0, "DevicesModel");
     qmlRegisterType<LinkPreviewer>("org.kde.neochat", 1, 0, "LinkPreviewer");
     qmlRegisterType<CompletionModel>("org.kde.neochat", 1, 0, "CompletionModel");
+    qmlRegisterType<StateModel>("org.kde.neochat", 1, 0, "StateModel");
 #ifdef QUOTIENT_07
     qmlRegisterType<PollHandler>("org.kde.neochat", 1, 0, "PollHandler");
 #endif
diff --git a/src/neochatconfig.kcfg b/src/neochatconfig.kcfg
index 3743e3cc9..620d9cb17 100644
--- a/src/neochatconfig.kcfg
+++ b/src/neochatconfig.kcfg
@@ -58,6 +58,10 @@
       <label>Automatic Hide/Unhide Room Information</label>
       <default>true</default>
     </entry>
+    <entry name="DeveloperTools" type="bool">
+      <label>Enable developer tools</label>
+      <default>false</default>
+    </entry>
   </group>
   <group name="Timeline">
     <entry name="ShowAvatarInTimeline" type="bool">
diff --git a/src/qml/Menu/Timeline/MessageSourceSheet.qml b/src/qml/Menu/Timeline/MessageSourceSheet.qml
index 13283a05c..2bb5f75f6 100644
--- a/src/qml/Menu/Timeline/MessageSourceSheet.qml
+++ b/src/qml/Menu/Timeline/MessageSourceSheet.qml
@@ -17,7 +17,7 @@ Kirigami.Page {
     rightPadding: 0
     bottomPadding: 0
 
-    title: i18n("Message Source")
+    title: i18n("Event Source")
 
     QQC2.ScrollView {
         anchors.fill: parent
diff --git a/src/qml/Page/DevtoolsPage.qml b/src/qml/Page/DevtoolsPage.qml
new file mode 100644
index 000000000..72672b20c
--- /dev/null
+++ b/src/qml/Page/DevtoolsPage.qml
@@ -0,0 +1,34 @@
+// SPDX-FileCopyrightText: 2022 Tobias Fella <fella@posteo.de>
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+import QtQuick 2.15
+import QtQuick.Controls 2.15 as QQC2
+
+import org.kde.kirigami 2.20 as Kirigami
+import org.kde.neochat 1.0
+
+Kirigami.ScrollablePage {
+    id: devtoolsPage
+
+    property var room
+
+    title: i18n("Room State - %1", room.displayName)
+
+    ListView {
+        anchors.fill: parent
+        model: StateModel {
+            room: devtoolsPage.room
+        }
+
+        delegate: Kirigami.BasicListItem {
+            text: model.type
+            subtitle: model.stateKey
+            onClicked: applicationWindow().pageStack.pushDialogLayer('qrc:/MessageSourceSheet.qml', {
+                sourceText: model.source
+            }, {
+                title: i18n("Event Source"),
+                width: Kirigami.Units.gridUnit * 25
+            });
+        }
+    }
+}
diff --git a/src/qml/Panel/RoomDrawer.qml b/src/qml/Panel/RoomDrawer.qml
index 14541a313..d2bb7bd0a 100644
--- a/src/qml/Panel/RoomDrawer.qml
+++ b/src/qml/Panel/RoomDrawer.qml
@@ -93,6 +93,24 @@ Kirigami.OverlayDrawer {
                         text: i18n("Room information")
                         level: 1
                     }
+                    QQC2.ToolButton {
+                        id: devtoolsButton
+
+                        Layout.alignment: Qt.AlignRight
+                        icon.name: "tools"
+                        text: i18n("Open developer tools")
+                        display: QQC2.AbstractButton.IconOnly
+                        visible: Config.developerTools && Controller.quotientMinorVersion > 6
+
+                        onClicked: {
+                            applicationWindow().pageStack.layers.push("qrc:/DevtoolsPage.qml", {room: room}, {title: i18n("Developer Tools")})
+                            roomDrawer.close();
+                        }
+
+                        QQC2.ToolTip {
+                            text: devtoolsButton.text
+                        }
+                    }
                     QQC2.ToolButton {
                         id: inviteButton
 
diff --git a/src/qml/Settings/GeneralSettingsPage.qml b/src/qml/Settings/GeneralSettingsPage.qml
index a0505e255..cb6df5a69 100644
--- a/src/qml/Settings/GeneralSettingsPage.qml
+++ b/src/qml/Settings/GeneralSettingsPage.qml
@@ -174,5 +174,25 @@ Kirigami.ScrollablePage {
                 }
             }
         }
+
+        MobileForm.FormCard {
+            Layout.topMargin: Kirigami.Units.largeSpacing
+            Layout.fillWidth: true
+            contentItem: ColumnLayout {
+                spacing: 0
+                MobileForm.FormCardHeader {
+                    title: i18n("Developer Settings")
+                }
+                MobileForm.FormCheckDelegate {
+                    text: i18n("Enable Developer Tools")
+                    checked: Config.developerTools
+                    enabled: !Config.isDeveloperToolsImmutable
+                    onToggled: {
+                        Config.developerTools = checked
+                        Config.save()
+                    }
+                }
+            }
+        }
     }
 }
diff --git a/src/res.qrc b/src/res.qrc
index fe026204b..596e6618a 100644
--- a/src/res.qrc
+++ b/src/res.qrc
@@ -89,5 +89,6 @@
         <file alias="About.qml">qml/Settings/About.qml</file>
         <file alias="SonnetConfigPage.qml">qml/Settings/SonnetConfigPage.qml</file>
         <file alias="NetworkProxyPage.qml">qml/Settings/NetworkProxyPage.qml</file>
+        <file alias="DevtoolsPage.qml">qml/Page/DevtoolsPage.qml</file>
     </qresource>
 </RCC>
diff --git a/src/statemodel.cpp b/src/statemodel.cpp
new file mode 100644
index 000000000..52ffc1732
--- /dev/null
+++ b/src/statemodel.cpp
@@ -0,0 +1,56 @@
+// SPDX-FileCopyrightText: 2022 Tobias Fella <fella@posteo.de>
+// SPDX-License-Identifier: LGPL-2.0-or-later
+
+#include "statemodel.h"
+
+StateModel::StateModel(QObject *parent)
+    : QAbstractListModel(parent)
+{
+}
+
+QHash<int, QByteArray> StateModel::roleNames() const
+{
+    return {{TypeRole, "type"}, {StateKeyRole, "stateKey"}, {SourceRole, "source"}};
+}
+QVariant StateModel::data(const QModelIndex &index, int role) const
+{
+#ifdef QUOTIENT_07
+    auto row = index.row();
+    switch (role) {
+    case TypeRole:
+        return m_room->currentState().events().keys()[row].first;
+    case StateKeyRole:
+        return m_room->currentState().events().keys()[row].second;
+    case SourceRole:
+        return QJsonDocument(m_room->currentState().events()[m_room->currentState().events().keys()[row]]->fullJson()).toJson();
+    }
+#endif
+    return {};
+}
+
+int StateModel::rowCount(const QModelIndex &parent) const
+{
+    Q_UNUSED(parent);
+#ifdef QUOTIENT_07
+    return m_room->currentState().events().size();
+#else
+    return 0;
+#endif
+}
+
+NeoChatRoom *StateModel::room() const
+{
+    return m_room;
+}
+
+void StateModel::setRoom(NeoChatRoom *room)
+{
+    m_room = room;
+    Q_EMIT roomChanged();
+    beginResetModel();
+    endResetModel();
+    connect(room, &NeoChatRoom::changed, this, [=] {
+        beginResetModel();
+        endResetModel();
+    });
+}
diff --git a/src/statemodel.h b/src/statemodel.h
new file mode 100644
index 000000000..8df0367b2
--- /dev/null
+++ b/src/statemodel.h
@@ -0,0 +1,37 @@
+// SPDX-FileCopyrightText: 2022 Tobias Fella <fella@posteo.de>
+// SPDX-License-Identifier: LGPL-2.0-or-later
+
+#pragma once
+
+#include <QAbstractListModel>
+
+#include "neochatroom.h"
+
+class StateModel : public QAbstractListModel
+{
+    Q_OBJECT
+
+    Q_PROPERTY(NeoChatRoom *room READ room WRITE setRoom NOTIFY roomChanged)
+
+public:
+    enum Roles {
+        TypeRole,
+        StateKeyRole,
+        SourceRole,
+    };
+    Q_ENUM(Roles);
+
+    StateModel(QObject *parent = nullptr);
+    QHash<int, QByteArray> roleNames() const override;
+    QVariant data(const QModelIndex &index, int role) const override;
+    int rowCount(const QModelIndex &parent) const override;
+
+    NeoChatRoom *room() const;
+    void setRoom(NeoChatRoom *room);
+
+Q_SIGNALS:
+    void roomChanged();
+
+private:
+    NeoChatRoom *m_room = nullptr;
+};