Ultimate Addons for Gutenberg (now Spectra) is a feature-rich block plugin that turns the native Gutenberg editor into a versatile page builder by adding over 20 advanced, customizable blocks—including post grids, content timelines, CTAs, pricing tables, maps, testimonials, form stylers, table of contents, schema-enabled FAQ/How‑To/Review, Lottie animations, and more—plus a library of ready-made starter templates you can import in one click. It emphasizes speed and responsiveness, giving users extensive styling controls without slowing down sites, and works seamlessly with Gutenberg’s visual editor to help build polished, dynamic layouts without any coding.