Alternatives · Email Sending
Plunk alternatives
As of Nov 13, 2026, the best Plunk alternative for most people is Resend (2.6 GPA), first in our ranking of email sending services. It's also the best free one.
Plunk compared with 7 alternatives: Resend, Twilio SendGrid, Mailgun, Postmark, Amazon SES and 2 more.
Plunk has a free plan. Paid plans start at $0.001 per email sent. 5 of the 7 alternatives are free or have a free plan. 2 more offer a free trial.
Listings checked up to Nov 13, 2026 · Where the facts come from
Black Friday: is there a Plunk sale?
At a glance
| Tool | Price | Free plan | Runs on |
|---|---|---|---|
| PlunkThis tool | Free plan · from $0.001 | Yes | Web |
| Resend | Free plan · from $20/mo | Yes | Web |
| Twilio SendGrid | Free trial · from $19.95/mo | Trial only | Web |
| Mailgun | Free plan · from $15/mo | Yes | Web |
| Postmark | Free plan · from $15/mo | Yes | Web |
| Amazon SES | Free trial | Trial only | Web |
| Hyvor Relay | Free plan · from €10,000/yr | Yes | Web |
| Mailazy | Free plan · from $49/mo | Yes | Web |
How each one differs from Plunk
Resend
Developer email API with React Email templates and a free tier
- Resend starts at $20 per month for 50,000 emails, billed monthly.
- Resend does not cover workflow automation, which Plunk does.
Suits: Developers building with Node.js, Next.js or React
Twilio SendGrid
Twilio's email API and SMTP service, priced by monthly email volume
- Twilio SendGrid starts at $19.95 per month for 50,000 emails.
- Twilio SendGrid has no free plan, only a free trial, unlike Plunk.
- Twilio SendGrid also covers email verification.
- Twilio SendGrid does not cover workflow automation and email campaigns, which Plunk does.
Suits: Developers adding transactional email to an app
Mailgun
Email API and SMTP relay for developers, with list validation
- Mailgun starts at $15 per month for 10,000 emails.
- Mailgun also covers email verification.
- Mailgun does not cover workflow automation and email campaigns, which Plunk does.
Suits: Developers sending and receiving email from an app
Postmark
Transactional email API and SMTP, with broadcasts on a separate stream
- Postmark starts at $15 per month for 10,000 emails.
- Postmark also covers dMARC.
- Postmark does not cover workflow automation and email campaigns, which Plunk does.
Suits: Software teams whose password resets and receipts must arrive fast
Amazon SES
AWS email sending and receiving, paid per 1,000 emails
- Amazon SES has no free plan, only a free trial, unlike Plunk.
- Amazon SES also covers email verification.
- Amazon SES does not cover workflow automation and email campaigns, which Plunk does.
Suits: Developers already running their apps on AWS
Hyvor Relay
Open-source email API you can self-host
- Hyvor Relay starts at €10,000 per year and up (Enterprise License).
- Hyvor Relay does not cover workflow automation and email campaigns, which Plunk does.
Suits: Teams that want to run their own sending infrastructure
Mailazy
Behavioral emails for product teams, sent through your own SMTP
- Mailazy starts at $49 per month, billed monthly.
- Mailazy also covers marketing automation.
- Mailazy does not cover transactional email, which Plunk does.
Suits: Product teams that want lifecycle emails without engineering tickets
Limits worth knowing in Plunk
- The free plan stops at 1,000 emails a month and puts Plunk branding on emails.
- The paid plan has no monthly fee: it is $0.001 per email, so cost scales directly with volume.
- The hosted service is in the EU; self-hosting under AGPL-3.0 carries that license's obligations.
Common questions
What are the alternatives to Plunk?
The alternatives to Plunk in this directory are Resend, Twilio SendGrid, Mailgun, Postmark, Amazon SES, Hyvor Relay and Mailazy. Each one has a side-by-side comparison with Plunk.
Is there a free alternative to Plunk?
Yes. Resend, Mailgun, Postmark, Hyvor Relay and Mailazy have a free plan alongside paid ones.
When were these prices checked?
Each listing shows its own date. On this page they run from Oct 18, 2026 to Nov 13, 2026. Vendors change prices without notice, so confirm on their site before you buy.