SamCart

SamCart is a checkout and sales page builder that lets you design both visually without touching code. Drag blocks around to build your offer, set up one-click upsells and order bumps, and choose your payment processor (Stripe, PayPal, Authorize.net, or custom). It includes email notifications, affiliate tracking, and webhook support for custom integrations. Branded checkout pages help reduce cart abandonment.

Fits well for course creators, membership sellers, and digital product businesses that care about checkout UX. It's stronger on the payment and upsell side than full-site building, and the visual editor is intuitive. Performance and conversion features are solid, though you'll need a separate tool for landing pages, email campaigns, or detailed customer relationship management.