Adding alt text to your images on the Buffer mobile app

Currently, it is possible to add alt text to images scheduled to X/Twitter, Mastodon, LinkedIn, Pinterest, Threads, and Facebook through Buffer.

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When you have added an image to your post in the Buffer composer (Learn more about scheduling posts on the Buffer mobile app here), tap Add Description to add your alt text and then tap Done to save the changes. From there, you can finish scheduling your post.

While we recommend using less than 200 characters to align with accessibility best practices, the character counts for alt text in Buffer are as follows:

  • Pinterest - 500 characters
  • LinkedIn - 300 characters
  • X/Twitter, Mastodon, Threads, Facebook, Bluesky - 1,000 characters
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Click "Add Description" to add alt text

It is not possible to add alt text for Instagram or TikTok posts in Buffer at this time. We are committed to improving in the area of accessibility, and you can find our full Accessibility Statement here. 

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