Social Media platforms are now indispensable tools to reach our wider community, unfortunately they are not accessible on their own. Content owners are responsible to ensure that any material posted on third party software such as: Facebook, Twitter, Instagram and others are accessible.

The general requirements include:

  • Contact information in the form of a website, email, phone number or by direct message for further assistance.
  • Photos have Alt Text
  • Videos are captioned


Photos: Include descriptive text to a photo by adding a caption before uploading your post:
› Select “Say something about this photo”
› Add a descriptive text about the photo
› Select “Post” when done

See also, How do I edit the alternative text for a photo?

Video Captions:
It is easiest to add captions to your YouTube video before uploading onto Facebook, see the Video Captioning section for more information. If you prefer to upload a video directly to Facebook you can do so by adding a SubRip (SRT) subtitle file format to you video. For detail instructions visit How to Add Closed Caption to Facebook Videos.

Adding captions to a video on Facebook:
› Create a properly formatted and timestamped .srt file for your video
› Upload the video file
› Hover over video for “Options” select “Edit this Video”
› Choose file to “Upload SRT files”
› Select your .srt file then “Save” when done

For more information visit the Facebook Accessibility for People with Disabilities page.


Photos: Turn on your ability to add Alt Text for images:

› Settings and Privacy
› General –> Accessibility
› Turn on “Compose image descriptions”
› While tweeting–> attach photo–> on photo tap to

“Add Description”–> Apply

Note: the process is slightly different depending on your operating system, learn more from Twitter support for more comprehensive instructions.

Videos: Same as with Facebook, it is easiest to add a YouTube video with captions to Twitter, unlike Facebook you cannot add an SRT file directly. In order to have the video captioned, you will have to embed them directly into the video before uploading using video captioning tools. See the Video Captioning section for more details.

Twitter offers more helpful steps to ensure that all users will have equal access:

  • Use prefixes to indicate whether the hyperlink leads to [AUDIO], [PHOTO], or [VIDEO] use all caps to make it easier to distinguish for sighted user.
  • Use a URL shortener to reduce the number of characters in the hyperlink (screen reader will spell out each letter of the hyperlink)
  • Use camel case by capitalizing the first letter of each word in a hashtag (e.g. use #AccessibleContent instead of #accessiblecontent)
  • Put @mentions and #Hashtags at the end of your post if possible. This allows screen readers to voice the main content before the more confusing text is read.


Instagram does not allow a way to add Alt Text to your photos or caption videos. Use the “Write a caption” field to add details to describe photos and to caption video posts.


Flickr does not give you the option to include Alt Text on your images, so it is important to provide meaningful text-based descriptions to accompany your image posts. Use the “Add description” option.

Flickr automatically inserts the same title as the photo file itself (e.g., “DSC001.jpg”). Change the title to something more descriptive (e.g., “John Smith at Brooklyn College Graduation 2017.jpg”).


Caption your videos. Captions are text files synchronized with audio or video. YouTube allows you to easily add captions to your videos. You can create and edit captions using YouTube or import your own caption files.

See the Video Captioning section for more information and guidelines.

Assistive Tools

Text Version

Text only display of

Speech, reading and translation support for online content