BigCommerce

BigCommerce is a SaaS ecommerce platform aimed at mid-market and enterprise brands that need more flexibility than entry-level store builders offer. It handles the core of running an online store: product catalog, checkout, payments, inventory, and multi-channel selling across marketplaces like Amazon and eBay and social platforms like Instagram and Facebook. A key differentiator is its open architecture, with an API-first design and headless commerce support (via its Catalyst framework and various frontend frameworks) that lets developers build fully custom storefronts while BigCommerce handles the backend commerce logic.

It's built for businesses that have outgrown simpler platforms or need deeper customization without moving to a fully custom-built stack. Retailers with complex catalogs, B2B sellers needing custom pricing and account features, and agencies building bespoke storefronts for clients are common users. Unlike Shopify's more closed ecosystem, BigCommerce doesn't charge transaction fees for using outside payment gateways, which appeals to merchants who want to shop around for payment processors.

BigCommerce also offers built-in SEO tools, no-code and low-code page builders, and an app marketplace for extending functionality with things like reviews, subscriptions, and marketing tools. It has leaned into AI features for product description generation and personalized recommendations, though these are less central to its identity than its open, developer-friendly architecture and enterprise-grade scalability.