s4saas4that

Plunk review

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

Our Plunk verdict

Plunk costs free. Nobody has reviewed it here yet, so this page is about what it costs and what it does, not how well it does it.

Developers wanting open-source, self-hostable email. There is a free tier: 1,000 emails/month free.

Who it is not for
Fewer pre-built templates than larger competitors
What this is based on
Based on pricing read from Plunk's own page on 2026-08-28, and what the product says it does. No reviews yet, so no score.

Pricing

PlanMonthlyAnnual /moWhat you get
FreeFreeSame as monthly1,000 emails/month, unlimited contacts, full API, Plunk branding on emails
Pay-as-you-growNot publishedSame as monthlyUnlimited emails, no branding, monthly spend cap available

Plunk price history

Every price change

Plunk's pricing has not moved since we started tracking it on 2026-08-27. We read it off Plunk's own pricing page on every update, and this section fills in when something changes.

Read from Plunk's own pricing page, dated on the day we read it. We only claim a change happened between two dates we actually looked, never on a date we did not.

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

Review Plunk

All Plunk reviews

Reviews of Plunk

We do not publish a score until 3 people have left one, because an average of one review is not a rating. It takes about a minute: verify an email so we know you are a person, pick a score, and say what it is actually like to use.

No password, no newsletter, one review per person per tool.

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Plunk ratings elsewhere

These are not saas4that reviews and they are not part of our rating. They are figures other people published, with the day we read them and a link so you can check whether they still say that.

Product Hunt, Trustpilot and GitHub figures come from those publishers' own public APIs. We do not cite rival directories. GitHub stars are a count of people who starred a repository, not a rating, and are shown only for the open-source tools here. How we source everything.

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More on Plunk

The rest of the stack

Plunk does one job. These are the jobs that usually come next, and what we would look at for each.

Website Building

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A list needs somewhere for people to join it.

Data Analytics

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Open rates tell you very little. These tie the send to what happened afterwards.

Chosen by what job comes next, not by any integration between them: we have not verified that these products talk to each other, so we are not going to imply it. A slot in this block is not for sale and paid placement is excluded from it outright, but some of these links do earn us a commission and the ones that do say so above.

Do you make Plunk?

Claim the listing, reply to reviews, and put your rating on your own site with a badge that keeps itself up to date.

Sources