How to add or edit alt text on TikTok photo posts

Alt text gives people using screen readers more context about your photos. On TikTok, you can add it while posting or edit it later; here are both paths and the 300-character limit for each photo.

Add alt text before you post

Prepare your photo or multi-photo post in the TikTok app. Describe the context each image needs; you can add a separate description next to each photo.

1. Upload or create a photo and tap Next.
2. On the post screen, tap More options.
3. Tap Add alternative text.
4. Enter a description next to each photo that needs context. Each one can be up to 300 characters.
5. Tap Done at the top.

Continue with your post. TikTok says screen readers can read this text to help people with visual impairments better understand the photos.

Edit alt text on a photo you posted

1. Go to your profile and open the photo post you want to update.
2. Tap More options on the side.
3. Tap Edit post.
4. Open Add alternative text and edit the description next to the relevant photo.
5. Tap Done.

To check the saved text, open Edit post → Add alternative text again and review each photo’s description. If the option is missing, make sure you opened a photo post and check the TikTok help linked below.

Use alt text to describe an image for screen readers. A post caption is the written text accompanying the post, and video captions transcribe its audio. See how to add or edit TikTok captions if you want to correct a video transcript.

See TikTok’s help on alternative text for photos for the documented steps and limits.