diff --git a/README.md b/README.md
index b4d02c4..332e79e 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,13 @@
-Online3DViewer
-==============
+Online 3D Model Viewer
+======================
 
-Online 3D Model Viewer - http://3dviewer.net/
+http://3dviewer.net
+
+With this online viewer you can view 3D models in your browser:
+- Supported file formats:
+  - 3ds
+  - obj, mtl
+  - stl
+- You can drag&drop files to your browser, or use the open button.
+- You should open the main file, and all of its requested files.
+  - For example open the requested mtl file with an obj file.