diff --git a/CMakeLists.txt b/CMakeLists.txt
index 05436a37..86a4a656 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -287,6 +287,7 @@ qt5_wrap_cpp(MOC_HEADERS
     src/dialogs/LeaveRoom.h
     src/dialogs/Logout.h
     src/dialogs/UserProfile.h
+    src/dialogs/RawMessage.h
     src/dialogs/ReadReceipts.h
     src/dialogs/ReCaptcha.h
     src/dialogs/RoomSettings.h
diff --git a/src/MatrixClient.cpp b/src/MatrixClient.cpp
index 8d9361af..12d7ac91 100644
--- a/src/MatrixClient.cpp
+++ b/src/MatrixClient.cpp
@@ -31,6 +31,7 @@ init()
         qRegisterMetaType<mtx::responses::JoinedGroups>();
         qRegisterMetaType<mtx::responses::GroupProfile>();
         qRegisterMetaType<std::string>();
+        qRegisterMetaType<nlohmann::json>();
         qRegisterMetaType<std::vector<std::string>>();
         qRegisterMetaType<std::vector<QString>>();
         qRegisterMetaType<std::map<QString, bool>>("std::map<QString, bool>");
diff --git a/src/MatrixClient.h b/src/MatrixClient.h
index f0aca5c4..981c6b1c 100644
--- a/src/MatrixClient.h
+++ b/src/MatrixClient.h
@@ -4,6 +4,7 @@
 #include <QObject>
 #include <QString>
 
+#include "json.hpp"
 #include <mtx/responses.hpp>
 #include <mtxclient/http/client.hpp>
 
@@ -15,6 +16,7 @@ Q_DECLARE_METATYPE(mtx::responses::Sync)
 Q_DECLARE_METATYPE(mtx::responses::JoinedGroups)
 Q_DECLARE_METATYPE(mtx::responses::GroupProfile)
 Q_DECLARE_METATYPE(std::string)
+Q_DECLARE_METATYPE(nlohmann::json)
 Q_DECLARE_METATYPE(std::vector<std::string>)
 Q_DECLARE_METATYPE(std::vector<QString>)
 
diff --git a/src/dialogs/RawMessage.h b/src/dialogs/RawMessage.h
new file mode 100644
index 00000000..5a7335f4
--- /dev/null
+++ b/src/dialogs/RawMessage.h
@@ -0,0 +1,56 @@
+#pragma once
+
+#include <QFont>
+#include <QFontDatabase>
+#include <QTextBrowser>
+#include <QVBoxLayout>
+#include <QWidget>
+
+#include "json.hpp"
+
+#include "Logging.h"
+#include "MainWindow.h"
+#include "ui/FlatButton.h"
+
+namespace dialogs {
+
+class RawMessage : public QWidget
+{
+        Q_OBJECT
+public:
+        RawMessage(QString msg, QWidget *parent = nullptr)
+          : QWidget{parent}
+        {
+                QFont monospaceFont = QFontDatabase::systemFont(QFontDatabase::FixedFont);
+
+                auto layout = new QVBoxLayout{this};
+                auto viewer = new QTextBrowser{this};
+                viewer->setFont(monospaceFont);
+                viewer->setText(msg);
+
+                layout->setSpacing(0);
+                layout->setMargin(0);
+                layout->addWidget(viewer);
+
+                setAutoFillBackground(true);
+                setWindowFlags(Qt::Tool | Qt::WindowStaysOnTopHint);
+                setAttribute(Qt::WA_DeleteOnClose, true);
+
+                QSize winsize;
+                QPoint center;
+
+                auto window = MainWindow::instance();
+                if (window) {
+                        winsize = window->frameGeometry().size();
+                        center  = window->frameGeometry().center();
+
+                        move(center.x() - (width() * 0.5), center.y() - (height() * 0.5));
+                } else {
+                        nhlog::ui()->warn("unable to retrieve MainWindow's size");
+                }
+
+                raise();
+                show();
+        }
+};
+} // namespace dialogs
diff --git a/src/dialogs/RoomSettings.cpp b/src/dialogs/RoomSettings.cpp
index a9739f3e..7409c5bd 100644
--- a/src/dialogs/RoomSettings.cpp
+++ b/src/dialogs/RoomSettings.cpp
@@ -1,6 +1,7 @@
 #include <QApplication>
 #include <QComboBox>
 #include <QFileDialog>
+#include <QFontDatabase>
 #include <QImageReader>
 #include <QLabel>
 #include <QMessageBox>
@@ -190,9 +191,7 @@ RoomSettings::RoomSettings(const QString &room_id, QWidget *parent)
         auto infoLabel = new QLabel(tr("Info").toUpper(), this);
         infoLabel->setFont(font);
 
-        QFont monospaceFont;
-        monospaceFont.setFamily("Courier New");
-        monospaceFont.setStyleHint(QFont::Courier);
+        QFont monospaceFont = QFontDatabase::systemFont(QFontDatabase::FixedFont);
 
         auto roomIdLabel = new QLabel(room_id, this);
         roomIdLabel->setTextInteractionFlags(Qt::TextSelectableByMouse);
diff --git a/src/timeline/TimelineItem.cpp b/src/timeline/TimelineItem.cpp
index 8f44b7e8..5bec4458 100644
--- a/src/timeline/TimelineItem.cpp
+++ b/src/timeline/TimelineItem.cpp
@@ -34,6 +34,8 @@
 #include "timeline/widgets/ImageItem.h"
 #include "timeline/widgets/VideoItem.h"
 
+#include "dialogs/RawMessage.h"
+
 constexpr int MSG_RIGHT_MARGIN = 7;
 constexpr int MSG_PADDING      = 20;
 
@@ -185,8 +187,10 @@ TimelineItem::init()
         contextMenu_      = new QMenu(this);
         showReadReceipts_ = new QAction("Read receipts", this);
         markAsRead_       = new QAction("Mark as read", this);
+        viewRawMessage_   = new QAction("View raw message", this);
         redactMsg_        = new QAction("Redact message", this);
         contextMenu_->addAction(showReadReceipts_);
+        contextMenu_->addAction(viewRawMessage_);
         contextMenu_->addAction(markAsRead_);
         contextMenu_->addAction(redactMsg_);
 
@@ -218,7 +222,8 @@ TimelineItem::init()
                           });
         });
 
-        connect(markAsRead_, &QAction::triggered, this, [this]() { sendReadReceipt(); });
+        connect(markAsRead_, &QAction::triggered, this, &TimelineItem::sendReadReceipt);
+        connect(viewRawMessage_, &QAction::triggered, this, &TimelineItem::openRawMessageViewer);
 
         topLayout_     = new QHBoxLayout(this);
         mainLayout_    = new QVBoxLayout;
@@ -816,3 +821,37 @@ TimelineItem::sendReadReceipt() const
                                                    }
                                            });
 }
+
+void
+TimelineItem::openRawMessageViewer() const
+{
+        const auto event_id = event_id_.toStdString();
+        const auto room_id  = room_id_.toStdString();
+
+        auto proxy = std::make_shared<EventProxy>();
+        connect(proxy.get(), &EventProxy::eventRetrieved, this, [](const nlohmann::json &obj) {
+                auto dialog = new dialogs::RawMessage{QString::fromStdString(obj.dump(4))};
+                Q_UNUSED(dialog);
+        });
+
+        http::client()->get_event(
+          room_id,
+          event_id,
+          [event_id, room_id, proxy = std::move(proxy)](
+            const mtx::events::collections::TimelineEvents &res, mtx::http::RequestErr err) {
+                  using namespace mtx::events;
+
+                  if (err) {
+                          nhlog::net()->warn(
+                            "failed to retrieve event {} from {}", event_id, room_id);
+                          return;
+                  }
+
+                  try {
+                          emit proxy->eventRetrieved(utils::serialize_event(res));
+                  } catch (const nlohmann::json::exception &e) {
+                          nhlog::net()->warn(
+                            "failed to serialize event ({}, {})", room_id, event_id);
+                  }
+          });
+}
diff --git a/src/timeline/TimelineItem.h b/src/timeline/TimelineItem.h
index 26bcfbae..fb961b6c 100644
--- a/src/timeline/TimelineItem.h
+++ b/src/timeline/TimelineItem.h
@@ -88,6 +88,14 @@ private:
         static constexpr int MaxWidth = 24;
 };
 
+class EventProxy : public QObject
+{
+        Q_OBJECT
+
+signals:
+        void eventRetrieved(const nlohmann::json &);
+};
+
 class TextLabel : public QTextBrowser
 {
         Q_OBJECT
@@ -220,6 +228,7 @@ public:
         bool isReceived() { return isReceived_; };
         void setRoomId(QString room_id) { room_id_ = room_id; }
         void sendReadReceipt() const;
+        void openRawMessageViewer() const;
 
         //! Add a user avatar for this event.
         void addAvatar();
@@ -273,6 +282,7 @@ private:
         QAction *showReadReceipts_;
         QAction *markAsRead_;
         QAction *redactMsg_;
+        QAction *viewRawMessage_;
         QAction *replyMsg_;
 
         QHBoxLayout *topLayout_     = nullptr;