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The customer engagement platform trusted by 11,000+ brands
Build customer journeys
around real behavior
One canvas, every path
Bring messages, timing, and branching logic together in one visual workflow.
Personalize with your data
Start or adapt journeys from segments, events, dates, forms, and relationships.
Build with AI or code-free
Your AI Agent builds workflows in seconds, or drag and drop to design your own.
Test, measure, improve
Set conversion goals and run experiments. Use the results to inform future automations.
“
It allows us to visualize the whole campaign straightaway, and when it comes to analyzing a campaign by itself, I never need to do that on a workflow separately from Customer.io.
“
Now we have all of the data and tools we need, which enables us to quickly build [gift notification emails] in the campaign builder with no additional engineering support required.
“
We were blown away by our ability to have marketers create complex automations without having to get too technical. We also have engineers in the platform and love that both departments can easily execute their visions.
Lift in conversions
Billing renewal rate
Lift in monthly revenue
Increase in monthly G2 reviews
Everything you need
to build smarter customer engagement
Build automations that
lift conversions
Reach customers at the right moment
Activate just-in-time journeys based on customer behavior and send on the best channel.
- Engage your audience by email, push, in-app, SMS, and more
- Tailor each message with your own customer data
- Personalize in real time with segment, event and date triggers
Adapt and adjust in real time
Guide customers through the best journey by responding to their actions and choices.
- Branch based on message preferences or customer behavior
- Test variations in message copy and journey paths to learn what works
- Control timing with delays, time windows, or conditional waits
Build with your choice of tools
Build from a prompt with your Agent, or design visually on our canvas. Access via MCP, CLI, or Slack.
- Visualize your entire workflow in one place
- Add messages, data operations, and AI actions to build automations
- Collaborate with your team by adding notes and reviewing together
Additional features
Multi-channel automations
Send via email, push, in-app, SMS, Slack, WhatsApp, and webhooks.
Analytics + metrics
View message performance directly in your workflow or ask the Agent.
Experiments
Compare paths and messages, measure lift with holdouts, and keep every result on record.
Message frequency limits
Manage message frequency to respect user preferences and compliance.
Subscription preferences
Set automations to send to specific subscription center topics.
Query Objects
Access related object data to enrich customer journeys.
Webhook actions
Send and receive data within an automation.
AI actions
Use AI-powered blocks to generate content and personalization.
Download and share
Export workflows as PNG images to provide context for your team.
Reusable logic
Build logic once and reuse it across workflows and workspaces.
Queue drafts
Check messages and conditions before anything goes live.
Journey attributes
Store temporary data to use throughout your journeys.
20-30%
Conversion rate
80%
Renewal rate
It’s a super simple campaign, but it saved us so much time and work. Customer.io’s flexibility meant that marketing didn’t own this workflow—any team that needed oversight could have visibility and ownership. That was a huge shift.
Questions?
We’ve got answers.
Build your automation
- 14-day free trial
- No card required
- Cancel anytime
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