Simpli Auto Alt Text improves SEO and accessibility by converting messy uploaded filenames into readable alt text during the standard WordPress media ingestion workflow.
When an image is uploaded, the plugin hooks into wp_generate_attachment_metadata and:
ucwords()_wp_attachment_image_alt post meta fieldExample
summer-beach_vacation.2024.jpg becomes `Summer Beach Vacation 2024`
The plugin only sets alt text when none already exists, so manually entered alt text is never overwritten.