Adding alt text to your images

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

📝 Looking for the mobile version of the Adding alt text to your images article?

To add alt text to your image, click on the image you uploaded within your Buffer composer. This will open the image in a larger view and there will be a text box at the bottom where you can add your alternative text description.

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

Buffer composer image - Click to expand and add description pop-up

Once you're done, click Save.

Image of man with sunglasses and a text box to add alt text beneath it

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