DirectoryEmail Tools
Plunk logo

Plunk

Send transactional emails, run marketing campaigns, and automate workflows — all open-source and self-hostable.…

Claim this listing
Visit Plunkuseplunk.com
Free plan
Plunk screenshot – image 1

Overview

Send transactional emails, run marketing campaigns, and automate workflows — all open-source and self-hostable. $0.001/email, no contact limits.

AI summary

Plunk is an open-source, self-hostable tool designed for sending transactional emails, running marketing campaigns, and automating workflows, offering a cost-effective pricing model.

Who Is It For

Best for

Organizations looking for a flexible, self-hosted solution for email and marketing automation without contact limits.

Not for

Businesses that require extensive customer support or advanced features typically found in more established platforms.

Strengths & Weaknesses

Biggest strength

The ability to send emails at a very low cost with no limits on contacts, making it appealing for startups and small businesses.

Biggest weakness

Limited visibility on specific pricing details and the absence of a free trial may deter some potential users. (AI-inferred; may be outdated – founders can correct this)

Classification

Likely competitors
MailgunSendGridMailchimpTwilio

Alternatives to Plunk

See all alternatives to Plunk

Community

Sign in to leave a comment.

No comments yet – be the first to share your experience.

How we sourced this: Observed fields () were crawled from https://www.useplunk.com/ and are stated as fact. AI-inferred fields () were generated by gpt-4o-mini and are always labelled – never presented as measured fact. Last updated: 12 August 2026. Is this your tool? Claim it to edit and get a do-follow badge.