There are no strict minimum or maximum length requirements for alt text, but here are some guidelines:
- Length: Keep alt text concise while conveying enough detail for someone who cannot see the image. Typically, alt text should be around 125 characters or less, as screen readers often cut off after this limit. However, if more detail is necessary for context, it’s okay to go slightly longer.
- Focus on essential details: Describe what is important about the image to help visually impaired users understand its purpose or content.
- Avoid redundancy: Don’t include phrases like “image of” or “picture of” in the alt text because screen readers already announce that it’s an image.
The goal is to balance clarity and brevity, giving essential context without going overboard.
