Shopify and BigCommerce are both credible picks in their category. The honest answer to which is better: it depends on which side of the trade-offs your operation sits.
Where Shopify is stronger
In an ecommerce stack, Shopify's strength is it is the storefront — the platform layer everything else plugs into. If that's the gap you're filling, it's the natural default — see our full breakdown.
Where BigCommerce is stronger
BigCommerce approaches the same category with different priorities; teams that value those priorities tend to be happier there. Compare current pricing and the depth of the two or three features you'll actually use daily.
How to decide
Write your top three requirements before opening either pricing page, trial the one matching requirement one, and commit only after running your core workflow end-to-end once.
Related: Best Shopify alternatives · How Shopify fits an ecommerce stack.