Plunk

Open sourceFree tier

Open-source email platform, marketing and transactional

I built Plunk as an open-source, developer-first alternative that unifies transactional and marketing email under one API.

Entry price

Free

Free: 1,000 emails/month free

Pricing

Plan	Monthly	Annual /mo	What you get
Free	Free	,	1,000 emails/month, unlimited contacts, full API, Plunk branding on emails
Pay-as-you-grow	,	,	Unlimited emails, no branding, monthly spend cap available

Free tier

Yes, 1,000 emails/mo

Automations

Yes, workflow automation

Transactional email

Yes, core feature

Landing pages

No

Paid newsletters

No

API/dev friendly

Yes, open-source API

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