language
Plunk
Open SourceSelf-HostableEmailAutomation
Open-source email automation for product emails, broadcasts, and user journeys
About Plunk
Plunk is an open-source email platform for sending transactional emails, broadcasts, and automated journeys. It gives product teams a developer-friendly alternative to closed marketing email suites.
Builders choose Plunk when they want ownership, simple APIs, and email automation that can be self-hosted. It is especially useful for SaaS onboarding, lifecycle messages, and product-triggered email.
Key Features
mail
Transactional Email
Send product-triggered emails through a clean developer API.
alt_route
Journeys
Create automated email flows based on user events and behavior.
dataset
Audiences
Segment contacts and send targeted broadcasts to the right users.
code
Self-Hosting
Run the platform yourself when you need data ownership and control.
Specifications
- Language
- TypeScript
- License
- AGPL 3.0
- Deploy
- Self-hosted or cloud
- Channels