diff --git a/BrainPortal/app/assets/stylesheets/cbrain.css.erb b/BrainPortal/app/assets/stylesheets/cbrain.css.erb
index 8ab644820..51e52918b 100644
--- a/BrainPortal/app/assets/stylesheets/cbrain.css.erb
+++ b/BrainPortal/app/assets/stylesheets/cbrain.css.erb
@@ -679,7 +679,11 @@ a {
   border: 1px solid #E4E4E4;
 }
 
-
+.bigiframe {
+  position: relative;
+  height: 100%;
+  width: 100%;
+}
 
 /* % ######################################################### */
 /* % General box layouts for account information */
diff --git a/BrainPortal/cbrain_plugins/cbrain-plugins-base/userfiles/html_file/html_file.rb b/BrainPortal/cbrain_plugins/cbrain-plugins-base/userfiles/html_file/html_file.rb
new file mode 100644
index 000000000..2a556bd66
--- /dev/null
+++ b/BrainPortal/cbrain_plugins/cbrain-plugins-base/userfiles/html_file/html_file.rb
@@ -0,0 +1,38 @@
+
+#
+# CBRAIN Project
+#
+# Copyright (C) 2008-2023
+# The Royal Institution for the Advancement of Learning
+# McGill University
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+# This model represents a single HTML file
+class HtmlFile < TextFile
+
+  Revision_info=CbrainFileRevision[__FILE__] #:nodoc:
+
+  has_viewer :name => 'HTML', :partial  => :html, :if  => :is_locally_synced?
+
+  def self.file_name_pattern #:nodoc:
+    /\.x?html?\z/i
+  end
+
+  def self.pretty_type #:nodoc:
+    "HTML File"
+  end  
+  
+end
diff --git a/BrainPortal/cbrain_plugins/cbrain-plugins-base/userfiles/html_file/views/_html.html.erb b/BrainPortal/cbrain_plugins/cbrain-plugins-base/userfiles/html_file/views/_html.html.erb
new file mode 100644
index 000000000..8a84be987
--- /dev/null
+++ b/BrainPortal/cbrain_plugins/cbrain-plugins-base/userfiles/html_file/views/_html.html.erb
@@ -0,0 +1,41 @@
+
+<%
+#
+# CBRAIN Project
+#
+# Copyright (C) 2008-2023
+# The Royal Institution for the Advancement of Learning
+# McGill University
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+%>
+
+
+
+<%= link_to h("Open in a separate tab"), url_for(:controller  => :userfiles, :id  => @userfile.id, :action  => :display, :viewer => :html, :content_viewer => "on", :file_name => @userfile.name), :target => "_blank" if params[:action] == "show" %>
+
+<iframe sandbox
+    src="<%= stream_userfile_path(@userfile, :disposition => 'inline')%>"
+    class="bigiframe"
+    style="width:100%; height: 100%;"
+ >
+    HTML Viewer
+</iframe>
+HTML was sandboxed and filtered for greter safety
+<%= link_to h("Show as is in a separate tab, without any safety filters"), stream_userfile_path(@userfile, :disposition => 'inline'), :target => "_blank" %>
+
+
+
+