ONLYOFFICE Document Editors Now Support Plugins

8 November 2016 By Nadya 27 2,052

Hi, everyone!

Tell us the truth: have you ever dreamed about adding specific features you need to the document editors? We have awesome news for you – from now on you can do it as the new version of ONLYOFFICE editors supports third-party plugins.


Get document editors you really need with ONLYOFFICE.

Make use of our ready extensions

We’ve written several plugins ourselves. You can find the Plugin button at the left sidebar of the editor.
Using our plugins you can:

  • Add YouTube videos and ClipArt objects to your documents
  • Recognize text from the pictures and screenshots
  • Convert selected text into speech
  • Take a break and play chess in your document.

Note that our ready to use plugins are automatically enabled in the cloud solution only. To use them in our server-based solutions or ONLYOFFICE Desktop Editors, you have to add them manually. Please follow the installation instructions here or watch the video below.

The source code of our plugins can be found on GitHub. You can use them as an example to make your own extensions.

Create your own plugins

Now we are giving you access to API for interaction with ONLYOFFICE Editors so that you can add new features for your own needs to our application.

Use our detailed API documentation to find out how to write a plugin and add it to the editors. Visit our forum to solve technical problems as well as share your ready plugins with the community.

And don’t forget to leave your comments below or find us on Facebook and Twitter!

Comments (27)
  1. Tomislav - Reply
    November 17, 2016 at 1:41 pm

    When do you plan to add special function in MS Excel. Like:
    – Drop-down feature that takes the range of cells from other sheet

    – Prohibiting certain values in cells – e.g. in MS Excel it looks like this:

    – Changing the color based on the value – e.g. in MS Excel it looks like this:

    • Nadya - Reply
      November 18, 2016 at 2:25 pm

      Hello! All the features you’ve mentioned are on our list and they will be added in the next versions. Cannot tell the exact dates, unfortunately

      • Tomislav - Reply
        November 28, 2016 at 4:22 pm

        OK. Thanks for the feedback. So I should follow your blog to find out when these changes are available?

        Will they be available for Open Source users?

        • Nadya - Reply
          November 28, 2016 at 6:32 pm

          You’d better read our blog if don’t want to miss a thing! The features will surely be available for all the ONLYOFFICE users.

  2. Ivan - Reply
    December 5, 2016 at 7:26 am

    I would like to see a plugin for publishing in Scorm Onlyoffice. To create courses for moodle

  3. Rahul Mer - Reply
    August 31, 2017 at 6:41 am


    How do i autostart a plugin to perform action as soon as the document is loaded?
    Code please.

    Regards Rahul

    • Nadya - Reply
      August 31, 2017 at 1:40 pm

      Hi! If you can compile ONLYOFFICE from source code, we can give you instructions how to fix that. Otherwise, you’ll have to wait until we add this feature. Can’t tell you the exact time, unfortunately, but it won’t be long

  4. Matthijs - Reply
    September 7, 2017 at 4:56 pm

    Hi Nadya,

    Any news on the requests from Tomislav? I second the request for the third mentioned. Conditional formatting would be sweet.

    • Nadya - Reply
      September 8, 2017 at 2:28 pm

      Hi! We hope that conditional formatting will have been released by the end of the year. Note that is is already supported for viewing.

      Other issues – not this year, unfortunately(

  5. Qudor - Reply
    July 28, 2019 at 12:56 pm

    Please add Mendeley plugin to your office

    • Nadya - Reply
      July 29, 2019 at 1:18 pm

      Working on it.

      Also: we already have an EasyBib plugin

    • Tedo Vrbanec - Reply
      December 30, 2019 at 3:27 am

      +1 for Mendeley plugin

  6. Dima - Reply
    January 26, 2020 at 12:43 pm

    +1 for Mendeley plugin

  7. kksilvery - Reply
    August 22, 2020 at 8:59 am




    • Nadya - Reply
      August 31, 2020 at 11:28 am

      We would love to have such a plugin as we use Grammarly in our team.

      We will need help from the Grammarly team though, we’ll ask them if they are ready to collaborate.

  8. Rishav - Reply
    October 11, 2020 at 10:48 am

    Any update on Grammarly plugin?

    • Nadya - Reply
      October 11, 2020 at 2:04 pm

      No public API for Grammarly is available. We tried contacting the Grammarly developers, but no interest from their side, unfortunately

  9. Anil Sarkar - Reply
    November 26, 2020 at 10:27 pm

    Hello, OnlyOffice is great. Can you please add the word count feature in the status bar as well as the feature to count the words of a particularly selected paragraph.
    Thank you

    • Nadya - Reply
      November 27, 2020 at 5:37 pm


      Yes, this is a popular request and we will implement that. However, I can’t give you the exact timeframe

      • Anil Sarkar - Reply
        December 2, 2020 at 8:16 pm

        Thank you so much for replying. If Grammarly isn’t ready to collaborate, is it possible to add a Hemmingway plugin? It is quite similar to grammarly.

        • Nadya - Reply
          December 3, 2020 at 11:19 am

          As far as I know, Hemingway doesn’t have an open API either.

          We’ll try to contact them and also will look for open source alternatives

  10. Anil Sarkar - Reply
    December 8, 2020 at 10:16 pm

    Every time I close the application, it stops responding. I have to kill the process from the taskbar.

    • Nadya - Reply
      December 9, 2020 at 12:23 pm

      Please, report an issue on

      If you are still interested we are integrating as a Grammarly alternative.

      The Grammarly developers also got in touch to inform us they have no API for integration at the moment, but it’s on their roadmap (no ETA)

      • Jean - Reply
        June 21, 2021 at 2:28 pm

        I think that Have now API for intégration.
        do you intégrated LanguagTools in Open Office ? Or another Antidote ?
        thanks f or answer

        • Nadya - Reply
          June 21, 2021 at 6:23 pm

          Hi Jean, I don’t know anything about OpenOffice cause it’s another product, but the LanguageTool plugin for ONLYOFFICE will be available soon

  11. Craig Ephraim - Reply
    November 16, 2021 at 9:55 pm

    I am interested in the following plugins:

    – Redaction
    – Advanced Watermarking, like Bates Stamping
    – Grammarly, now available:


    • Ksenija - Reply
      November 17, 2021 at 10:50 am

      Hello Craig! Thanks a lot for your suggestions, we’ve already forwarded them to our tech team.

Add a comment