Best WordPress Alt Text Generator Plugins in 2026 (Compared)

WordPress powers over 43% of all websites on the internet — and the vast majority of them have an alt text problem. Manually writing alt text for every image is time-consuming, tedious, and easy to forget. The result? Thousands of images with no alt text, empty attributes, or unhelpful defaults like the filename. This hurts both SEO (search engines can't index images properly) and accessibility (screen reader users get no useful context). The good news: AI-powered WordPress alt text generator plugins now make it possible to automatically generate accurate, descriptive alt text for your entire image library — in minutes. What to Look for in a WordPress Alt Text Plugin Not all alt text plugins are created equal. Key criteria to evaluate: AI quality — Does it use a capable vision AI that produces accurate, context-aware descriptions? Bulk processing — Can it handle your existing image library, not just new uploads? Overwrite control — Can you choose whether to overwrite existing alt text