Klaviyo Alternatives 2026: Best Email Marketing Tools for Shopify Stores

Klaviyo has long been a powerhouse in e-commerce email marketing, especially for Shopify stores. Its robust segmentation, advanced automation, and powerful analytics have made it a favorite among growing brands. However, in 2026, many Shopify merchants are actively seeking alternatives — and we’ve tested the top options to help you decide. For our detailed reviews of the leading platforms, see our Omnisend Review, Systeme.io Review, and Klaviyo vs Omnisend comparison.