Oxygen Builder is a developer-friendly visual website builder for WordPress that lets web designers, freelance developers, and agencies craft pixel-perfect, performance-tuned WordPress sites with full control over the underlying markup and CSS. Marketed as a visual WordPress page builder for developers, Oxygen Builder combines a clean visual editor, full theme replacement (so it does not depend on a theme), advanced typography and CSS controls, a deep WooCommerce builder, design library, and lifetime licensing on every plan. Oxygen Builder is the choice for performance-focused freelance WordPress developers, agencies building bespoke client sites, and technical designers who want Elementor-style speed with hand-coded output quality.