For most WooCommerce stores, Stripe is the better fit – with one clear exception.
Stripe is built for online payments and has an official WooCommerce plugin maintained by Stripe, with strong support for cards, wallets (Apple Pay, Google Pay) and buy-now-pay-later. For an online store, that integration depth and reliability is hard to beat.
Square‘s strength is omnichannel: if you also sell in person, Square can unify your online WooCommerce store with a physical point-of-sale under one system, syncing inventory and payments. That’s a real advantage for retailers with a shopfront or market stall.
So the rule: online-only, choose Stripe; online plus a physical POS you want unified, Square is worth considering. Either way, use the official gateway plugin rather than a third-party one. More: best gateway overall · Stripe’s fees