Find Open-Source Alternatives
Discover powerful open-source replacements for popular commercial software. Save on costs, gain transparency, and join a community of developers.
Discover powerful open-source replacements for popular commercial software. Save on costs, gain transparency, and join a community of developers.
Compare community-driven replacements for Customer.io in email marketing platforms workflows. We curate active, self-hostable options with transparent licensing so you can evaluate the right fit quickly.
Run on infrastructure you control
Recent commits in the last 6 months
MIT, Apache, and similar licenses
Counts reflect projects currently indexed as alternatives to Customer.io.
These projects match the most common migration paths for teams replacing Customer.io.
Why teams pick it
Self-hostable deployment with Docker or Render for data sovereignty
Why teams pick it
Advanced segmentation by user attributes, actions, and campaign interactions
Open-source omni-channel customer engagement and messaging automation platform
Why teams choose it
Watch for
Requires infrastructure management for self-hosted deployments
Migration highlight
Automated onboarding journeys
Trigger personalized email and push notification sequences when users sign up, improving activation rates with event-based messaging across channels.
Open-source customer engagement and product onboarding automation platform
Teams replacing Customer.io in email marketing platforms workflows typically weigh self-hosting needs, integration coverage, and licensing obligations.
Tip: shortlist one hosted and one self-hosted option so stakeholders can compare trade-offs before migrating away from Customer.io.
Why teams choose it
Watch for
Currently in public beta with ongoing stability improvements
Migration highlight
Product Onboarding Automation
Design multi-step onboarding journeys triggered by user signup events, sending personalized email and push sequences to drive feature adoption and reduce time-to-value.