diff --git a/src/librssguard/gui/webviewer.h b/src/librssguard/gui/webviewer.h
new file mode 100755
index 000000000..bb7927aff
--- /dev/null
+++ b/src/librssguard/gui/webviewer.h
@@ -0,0 +1,54 @@
+#ifndef WEBVIEWER_H
+#define WEBVIEWER_H
+
+#include "core/message.h"
+
+class WebBrowser;
+class RootItem;
+
+// Abstract class to define interface for web viewers.
+class WebViewer {
+  public:
+
+    // Performs necessary steps to make viewer work with browser.
+    virtual void bindToBrowser(WebBrowser* browser) = 0;
+
+    // Perform inline search.
+    // NOTE: When text is empty, cancel search.
+    virtual void findText(const QString& text, bool backwards) = 0;
+
+    // Loads URL into the viewer.
+    virtual void setUrl(const QUrl& url) = 0;
+
+    // Set static HTML into the viewer.
+    virtual void setHtml(const QString& html, const QUrl& base_url = {}) = 0;
+
+    // Returns current static HTML loaded in the viewer.
+    virtual QString html() const = 0;
+
+    // Returns current URL.
+    virtual QUrl url() const = 0;
+
+    // Clears displayed URL.
+    virtual void clear() = 0;
+
+    // Displays all messages;
+    virtual void loadMessages(const QList<Message>& messages, RootItem* root) = 0;
+
+    // Vertical scrollbar changer.
+    virtual double verticalScrollBarPosition() const = 0;
+    virtual void setVerticalScrollBarPosition(double pos) = 0;
+
+    // Apply font.
+    virtual void reloadFontSettings(const QFont& fon) = 0;
+
+    // Zooming.
+    virtual bool canZoomIn() const = 0;
+    virtual bool canZoomOut() const = 0;
+    virtual qreal zoomFactor() const = 0;
+    virtual void zoomIn() = 0;
+    virtual void zoomOut() = 0;
+    virtual void setZoomFactor(qreal zoom_factor) = 0;
+};
+
+#endif // WEBVIEWER_H