September 2020 Updates: Zoom, OBS Closed Captioning, Experiments, Help Center Articles

7 Sep 2020

3-minute read

Happy September! It has been a while since a full Web Captioner update. I have exciting things to announce about Zoom support, closed captioning with OBS, experiments, the help center, and more.

Web Captioner continues to be supported by generous donations and developed by me in my free time. Thank you for your support!

If you have questions about Web Captioner, check out the updated Help Center, send me a message at, or message Web Captioner on Facebook.


What’s New

Connect Web Captioner with Zoom

You can now send real-time captions to a Zoom meeting from Web Captioner. This has been a very popular feature request the past months and I’m happy to finally have it ready. Thanks to everyone who contacted me to try this feature out early and send in feedback.

To set this up, head over to the new channels page and set up the Zoom channel.

Closed Captioning with OBS Studio

Yes, now Web Captioner can now play nicely with this button (if you use OBS Studio)! · Hungry (Twitch)

Web Captioner can now use OBS Studio to encode closed captions into a stream. Up to this point, Web Captioner could only provide open captions, or captions that are burned into a video and always visible. With this update, if you use OBS Studio, you can now encode closed captions into your video. Viewers on Twitch, Facebook, or YouTube, for example, can optionally turn on your captions using the closed captioning button on those websites. Add the OBS Studio channel to get started with closed captioning or read more about closed captions with OBS.

Introducing Channels

Channels are now the way that Web Captioner connects to other services like Dropbox, vMix, and now Zoom and OBS.

When you add a channel, you’ll now see that channel and its connection status next to the Start Captioning button. You can turn channels on and off from this menu.

Do you run a service that you would like Web Captioner to integrate with? Let’s talk!


Web Captioner’s new experiments page is a place to check out features I have worked on that may not be quite ready yet for prime time. If you’re feeling adventurous, try them out!

Simplified vMix setup and performance improvements

The Chrome extension previously needed to connect Web Captioner with vMix is no longer required. Web Captioner now only sends up to two lines of text over to vMix instead of the full transcript. If you previously used Web Captioner with vMix, you will need to set up the vMix channel again in Web Captioner.

New Help Center Articles

Some new articles in the Help Center include:

Other updates

  • Added a “speak back” experiment for announcing text back after it is transcribed.
  • Added Windows-style control characters in exported text files (\r\n now instead of just \n).
  • Removed the Dropbox file list that would list the transcript files in your Apps > Web Captioner folder.
  • Added missing quotes in the webhook sample payload documentation.
  • Turned off censorship by default.
  • Removed the option to change the user interface language to anything other than US English for now.
  • Fixed an issue where the browser compatibility message would not appear in Microsoft Edge or Chrome for iOS. (Web Captioner only works in non-mobile versions of Google Chrome.)
  • Added a message to the language settings page about how Web Captioner does not currently support translating between languages in real-time.

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