Atto: WIRIS plugin for Atto - Math & science

Maintained by Picture of WIRIS team SUPPORT WIRIS team SUPPORT
Extend your rich text editor with a fully WYSIWYG equation editor for math and chemistry expressions (WIRIS editor) and, optionally, an advanced calculator tool (WIRIS cas).
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Moodle 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3

WIRIS plugin for Moodle

Add a fully WYSIWYG for scientific expressions (WIRIS EDITOR) and, optionally, an advanced calculator tool (WIRIS CAS). Enabled editing to STEM related topics (Science, Technology, Engineering and Mathematics). 

WIRIS EDITOR is a mathematical visual (WYSIWYG) editor. You can use a large collection of icons nicely organized in thematic tabs in order to create formulas or equations for any web content. You can create and edit your formulas in a visual environment, just click on the WIRIS editor icon for creation or double-click on the formula for edition. No maintenance when upgrading Moodle to a new minor version. It is based on JavaScript and compatible with HTML 5.

WIRIS EDITOR offers a chemistry toolbar. The maths and the chemistry palette are available from different icons in the rich text editor.

WIRIS CAS is an online platform for mathematical calculations designed for education. You can access a powerful calculation toolbar through an HTML page that includes integrals and limits calculation, function graphing in 2D or 3D and symbolic matrices manipulation, among others. WIRIS cas covers all mathematical topics from primary school to university level (Calculus, Algebra, Geometry, Differential Equations...).

WIRIS tools can be used for free up to a certain level of use per natural year. Please read license conditions and prices at WIRIS store.

In order to use WIRIS tools for editing you need to combine WIRIS filter with  WIRIS plugin for Atto and/or WIRIS plugin for TinyMCE.

More than editing, better quizzes.

Interested in mathematical quizzes with random parameters and automated evaluation?
Must check our new STEM question types at WIRIS quizzes plugin.

Previous version of Moodle?

Running a previous version of Moodle? You can download the components from


This plugin is part of set WIRIS math & science.


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Picture of WIRIS team SUPPORT
WIRIS team SUPPORT (Lead maintainer)
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  • Picture of WIRIS team SUPPORT
    Mon, 6 Jul 2015, 10:11 PM
    We would need to know the URL of the Moodle where you are using WIRIS in order to check your usage.
    You can provide us the details here or send them to us by e-mail to
  • Picture of Léo Joseph
    Tue, 7 Jul 2015, 3:48 PM
    There's no solution to verify it myself ?
    it would be great if it there was a solution to check ownself that.
  • Picture of WIRIS team SUPPORT
    Tue, 7 Jul 2015, 6:39 PM
    Alternatively, you can check how many files are stored in //filter/wiris/formulas directory. If you have never cleared WIRIS cache in your Moodle site, this would be the number of formulas you have created.
  • Picture of Nguyễn Đức Thuận
    Sat, 18 Jul 2015, 5:24 PM
    I can't install WIRIS plugin for Atto - Maths in moodle 2.8. it has information: Dependencies check failed for atto_wiris?
  • Picture of WIRIS team SUPPORT
    Mon, 20 Jul 2015, 6:20 PM
    @Nguyễn Please note that in order to install atto_wiris you also need to install filter_wiris (
  • Picture of Matthew Davidson
    Wed, 19 Aug 2015, 10:40 PM
    What is the plan for WIRIS Hand? I have created an addition to the existing plugins (as a proof of concept), that adds a hand icon in the text editors. It pops up a window with the WIRIS hand embedded, and then grabs the MathML and places it in the editor. Works great, just wondering if that is going to be included in the WIRIS editor at some point or what the licensing requirements are to actually put it into production.
  • Picture of Ramon Eixarch
    Thu, 20 Aug 2015, 7:31 PM
    Hi Matthew,

    HAND & EDITOR will be 'merged' very soon. We still have to decide the concrete terms. It may be the case that depending on the device (touchable vs desktop) the default mode is handwriting or palette based.

    If you want to discuss licensing terms the best option is that you send a message to
  • Picture of Geoffrey Rowland
    Wed, 13 Jan 2016, 1:38 AM
    Latest version is missing the title string for the new chemistry editor button (on atto editor toolbar).
  • Picture of WIRIS team SUPPORT
    Fri, 15 Jan 2016, 5:21 PM
    @Geoffry: Thanks for your feedback. The new version fix the issue.

  • Picture of Geoffrey Rowland
    Sat, 16 Jan 2016, 8:45 PM
    Yes, the update fixes that for me. Thanks for your prompt work. Good to see the new Chemistry editing features.

    One other thing, which may also relevant for the Maths editor. Is there a way to chose upright (rather than italic) lower-case greek letters?
    I appreciate the convention for maths variables is to use italic lower case greek letters and that you already have an upright lower case pi constant, but upright lower-case greek characters would be useful for some chemical nomenclature, physical constants etc.
  • Picture of Ramon Eixarch
    Tue, 19 Jan 2016, 1:48 AM
    By default WIRIS works with an auto-italic mode with the MATH PALETTE.

    That feature is not activated in the CHEMISTRY PALETTE. Hence you should be have to upright lower-case greek letters.
    You can have a try in the demo
  • Picture of HAJA MARICAR
    Sat, 1 Oct 2016, 7:25 PM
    Hi everyone,

    Aplogise if this issue has been raised up.. i try to make sense of the above dicussion without success. I am very new to moodle and do not understand technical language too much. I am trying to create a maths course
    in moodle and i wish to install this plugin. I had succefully installed WIRIS plugin filter and WIRIS plugin for Atto editor. However when i try to install WIRIS quizzes at first it prompts me to manually update the plugin type. And after i chose 'Question type' i am still unable install. I get this error prompt.

    Validating qtype_type ... Error
    [Error] File version.php not found [null]
    Installation aborted due to validation failure
  • Picture of WIRIS team SUPPORT
    Mon, 3 Oct 2016, 5:12 PM
    @HAJA MARICAR We understand you are trying to install WIRIS quizzes using the "Install add-ons" feature from Moodle's user interface.
    Unfortunately, that installation method is not currently possible for WIRIS quizzes.
    You need to install WIRIS quizzes manually as described at
  • Picture of Matthew Wilson
    Tue, 22 Aug 2017, 11:08 PM
    I cannot find the WIRIS button on the ATTO toolbar. The filter is enabled and WIRIS says it is installed correctly.
  • Picture of WIRIS team SUPPORT
    Wed, 23 Aug 2017, 12:52 AM
    @Matthew Wilson:
    Please check if WIRIS is present at http:///admin/settings.php?section=editorsettingsatto under "Toolbar config".
    You should see a line "math = wiris", if it is not present please add it.
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