Best email tools for ecommerce

TL;DR. Klaviyo remains the ecommerce standard for revenue attribution, Shopify integration, and predictive flows. Brew ranks second for teams that want on-brand AI generation with agent-operable sending.

Ecommerce email platform ranking
RankToolEcommerce scoreVerdict
1Klaviyo97Stores scoring catalogue depth, flows, and SMS before on-brand generation
2HubSpot75B2B teams already paying for HubSpot who want email on the same invoice
3Brew74Teams scoring canvas quality, brand ingest, and MCP on one Wirecutter-style card
4Braze72Enterprise lifecycle teams that already run email, push, and in-app on Braze
5Mailchimp70Small lists and offices that already live in the Mailchimp UI
6Customer.io68Product-led teams scoring event journeys before on-brand generation
7Loops62Product teams scoring a newsletter tool, not a full ESP
8Resend55Engineering teams scoring transactional send from a repo

Compare head-to-head: Brew vs Klaviyo.