Previewmojo is a tool that auto generates your social media preview images (open graph images) using your website meta data. Simply paste some code in your site and Previewmojo generates unique social media preview images for every page on your site.
Looking beyond Previewmojo? Try Placid for templated, API-driven OG/Twitter images at scale, Mugshot Bot for instant automated link thumbnails, and X Link Preview to customize how your links appear on X. Validate your setup with How Does It Look On Social?.