Klaviyo is a marketing automation and customer data platform built for e-commerce and other B2C brands that want to run personalized campaigns without stitching together separate tools for data, messaging and service. It positions itself as an autonomous CRM, pairing a unified customer data platform with AI agents that can build campaigns and handle customer service, and it is used across retail, wellness and restaurant businesses, among others.
Customer data from a business's other systems feeds into unified profiles that campaigns and automations can act on, reaching people over email, SMS, RCS, WhatsApp and mobile push from one workspace. A composer tool can audit existing flows and campaigns or draft new ones from a written prompt, and a customer service agent is built to resolve about 65% of incoming questions on its own before a human needs to step in. Klaviyo also connects to several hundred other tools, including e-commerce platforms and CRMs, through pre-built integrations, and the company reports more than 200,000 brands across 100 countries use the platform.
Klaviyo offers a free plan that covers core features, with paid plans priced according to the number of contacts and channels a business uses; larger organizations can also arrange enterprise pricing directly with the company.
Listed 1 month ago by MakerVote editors · Updated September 2026 · 32 clicks