Plunk
Open-source email platform for SaaS
Antwerp, Belgium
Founded 2022
Plunk is an open-source email platform that combines transactional emails, marketing campaigns, and workflow automation in a single self-hostable product. Built as an alternative to tools like SendGrid, Resend, and Mailchimp, it offers a visual workflow builder, dynamic audience segmentation, inbound email processing, and detailed analytics. Plunk is licensed under AGPL-3.0, EU-hosted, and GDPR compliant, with pricing at $0.001 per email and no contact limits.
Websites:
Last Updated: June 6, 2026
Current Valuation
No valuation data available
Funding Summary
No funding data available.
Media Mention
August 6, 2024
Hacker News: Plunk: The open source email platform
Media Mention
April 30, 2023
ProductHunt: Plunk: The Email Platform for SaaS
Key People
Core OSS Projects
The open-source email platform for transactional emails, marketing campaigns, and workflow automation
License: AGPL-3.0
Business Information
Category
Email MarketingIndustries
Marketing
Technologies
Self-HostedWorkflow AutomationEmail API
Sectors
DeveloperSMBs
Licenses
AGPL-3.0
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Socials and Communities
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