Maintained by Picture of Carl LeBlondCarl LeBlond
Easily draw and insert chemical structures using MarvinJS. Requires MarvinJS from Chemaxon.

Chemical Structures and Reactions Editor 1.1 (Build 2015020500)

Release notes

MarvinJS atto plugin (atto_structure) for Moodle.
Alows users to create chemical structures and reactions then easily
insert image into Moodle.

Quick Installation
1) Download and install MarvinJS from
2) Place the structure folder in your lib/editor/atto/plugins folder.
3) Proceed to the notifications section of the admin panel.
4) Confirm installation of moodle-atto_structure
5) Set the path to MarvinJS in the settings page that appears
or proceed to admin setting for this filter and set path).
6) Proceed to Site administration > Plugins > Text editors > Atto HTML
editor > Atto toolbar settings and add the new plugin to the tool bar
config, by adding "structure" at the end of one of the rows of buttons.

Moodle 2.7, 2.8

Version information

Version build number
Version release name
1.1 (Build 2015020500)
Can be updated to
1.1 (Build 2015020500) (2016021200)
Stable version
MD5 Sum
Supported software
Moodle 2.7, Moodle 2.8
  • This is the latest release for Moodle 2.7
  • This is the latest release for Moodle 2.8

Version control information

Version control system (VCS)
VCS repository URL

Default installation instructions for plugins of the type Atto

  1. Make sure you have all the required versions.
  2. Download and unpack the module.
  3. Place the folder (eg "myeditorplugin") in the "lib/editor/atto/plugins" subdirectory.
  4. Visit to finish installation of the plugin.

To make the newly installed plugin available, you need to edit the Atto toolbar configuration so that the new plugin appears in the toolbar.

  1. Go to your Site administration ►Plugins ► Text editors ► Atto HTML editor ► Atto toolbar settings
  2. Add the new plugin to the desired position in the toolbar.