Klaviyo is the autonomous B2C CRM and AI marketing platform that unifies customer data and automates email marketing, SMS, RCS, WhatsApp, and mobile push to drive personalized, revenue-generating campaigns. Whether you’re an entrepreneur just getting started or an enterprise brand with global, omnichannel marketing needs, Klaviyo delivers the capabilities you need—from a powerful email marketing platform to sophisticated omnichannel campaign orchestration. Built as both a system of record and system of action, Klaviyo combines a customer data platform, real-time signals, and AI agents to power automated insights and one-click execution.

What channels does Klaviyo support?

Klaviyo unifies email, SMS / Text, RCS, mobile push, WhatsApp, and web events into a single customer profile so you can run consistent, data-driven omnichannel marketing. This unified CDP and real-time signals power cross-channel flows, predictive analytics, and agent decisions to deliver more relevant messages where customers prefer to engage.

the AUTONOMOUS B2C CRM

The AI marketing & service platform for ambitious consumer brands

Build and optimise your omnichannel campaigns and deliver personalised, 24/7 support – all from a prompt.

Powering 205,000+ relationship-driven brands across 100 countries

Agents built for unstoppable growth

Build lasting relationships – and gain a competitive edge – with AI agents that know your brand and customers, and understand how to deliver remarkable experiences autonomously.

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Composer, your AI marketing agent

Know your best revenue opportunity? Composer does. With one prompt, Composer audits your flows, segments and forms, and creates an entire on-brand campaign to maximise your revenue.

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Customer Agent, your 24/7 customer service

Support with serious selling power. Customer Agent resolves 65% of questions autonomously. Pre-trained on your brand from day one, and customisable with skills. Tell it what you want, and it builds it for you.

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Your data, intelligence and AI agents working as one

With the autonomous B2C CRM, turn your marketing, analytics and service into always-on growth engines. Personalise, learn from and improve every customer experience across all your channels in real time.

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Marketing that carries the conversation

When all your customer data and channels are in a single marketing platform, every email, text and push notification responds to what customers actually do – in real time.

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AI built for every customer moment

Klaviyo AI generates and personalises campaigns, optimises interactions, and supports customers 24/7 with tools and agents that do the work for you.

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Service that solves and sells

With service and marketing on one platform, your support team has all the data it needs for faster resolutions, smarter recommendations, and opportunities to upsell and build loyalty.

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Analytics that deliver your next win

When your data, campaigns and channels are in one place, it's easy to understand what's working, act on insights immediately and optimise without another tool or team.

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CDP that gives you the full data story

Klaviyo Data Platform (KDP) unifies your customer data—behavioural, transactional, and engagement—in real time, so you can put it to work immediately across every touchpoint.

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2.5B

Average events processed daily

7.3B

Customer profiles

1.6B

Average API calls processed daily

Fueling growth for brands that don’t settle

350+ pre-built integrations

From ecommerce to agentic commerce. Connect your data across your entire tech stack.

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Frequently asked questions

What is Klaviyo?

Klaviyo is the autonomous B2C CRM and AI marketing platform that unifies customer data and automates email, SMS, RCS, WhatsApp, and mobile push notifications to drive personalised, revenue-generating campaigns. Built as both a system of record and system of action, Klaviyo combines a customer data platform, real-time signals, and AI agents to power automated insights and one-click execution.

How much does Klaviyo cost? Is there a free plan?

Yes. Klaviyo offers a free plan with core features, and paid plans scale based on the number of contacts and channel usage (such as email and SMS). Enterprise pricing is also available for large organisations with advanced needs.

What integrations does Klaviyo offer?

Klaviyo offers native integrations with ecommerce platforms like Shopify, plus connectors for payment providers, CRMs, analytics tools, and messaging platforms. We also integrate with your favourite AI tools with our Klaviyo ChatGPT app, Klaviyo Claude Connector, and Klaviyo MCP for building agentic workflows. These integrations sync customer, product, and order data in real time to power personalised marketing and automation.

Which channels does Klaviyo support?

Klaviyo unifies email, SMS / text, RCS, mobile push, WhatsApp and web events into a single customer profile so you can run consistent, data-driven omnichannel marketing.

That unified CDP and real-time signals power cross-channel flows, predictive analytics and agent decisions to deliver more relevant messages through customers’ preferred channels.

How does Klaviyo support enterprise brands?

For enterprise brands, Klaviyo is the unified B2C CRM built to replace fragmented legacy stacks — consolidating data, execution and analytics into one secure, scalable platform. Unlike rigid suites that require constant developer intervention and data synchronisation, Klaviyo gives marketing teams the autonomy to launch sophisticated omnichannel campaigns across email, SMS, push, WhatsApp and web in days, not months.

Built on a flexible data foundation with unified customer profiles, 350+ native integrations and full developer tooling (APIs, webhooks, SDKs, warehouse syncs), Klaviyo deploys rapidly — with enterprise-grade security, audit-ready compliance, dedicated CSMs and peak-season uptime backed by SLAs.

Which languages is Klaviyo available in?

The Klaviyo platform and Help Centre are localised into 11 languages: English, French, German, Spanish, Mexican Spanish, Italian, Korean, Brazilian Portuguese, Swedish, Polish and Dutch — with each version continuously being updated as new features become available for the market.

For step-by-step instructions on how to change the language in the Klaviyo Platform, visit our Help Centre guide.

Is Klaviyo GDPR-compliant?

Klaviyo has implemented measures to meet its GDPR obligations as a data processor, including a Data Processing Agreement, comprehensive security measures, and self-service tools to support data subject rights requests.

Klaviyo also supports lawful international data transfers through mechanisms such as the EU–US Data Privacy Framework and Standard Contractual Clauses.

GDPR compliance is a shared responsibility: Klaviyo provides the tools, while each business is responsible for how it collects and uses customer data.