Resend
Email API for developers to send transactional and marketing email, with React-based templates.
Pricing FreemiumPaid from $20 a month for the Pro plan (50,000 emails a month)Open source noStars 964npm a week 15M
Postmark alternatives
5 tools you can use instead of Postmark, ranked by live GitHub stars and npm downloads. Resend, SendGrid and Amazon SES are the most used. Stats updated 17 hours ago.
When Postmark is not a good fit
Postmark is an email delivery service with an API and SMTP for sending transactional and marketing email. The site is made by ActiveCampaign, LLC. Plans start with a free tier of 100 emails a month, and paid plans begin at $15 a month for 10,000 emails.
It is a weaker choice for:
- Large marketing campaigns and automation: the focus is developer email delivery
- Teams that need a dedicated IP at low volume: it requires 300,000 or more emails a month
- Anyone who needs open source or self-hosting: Postmark is a hosted service
The alternatives
Most used first.
View Resend
SendGrid
Twilio's email API and delivery platform for transactional and marketing email.
Pricing FreemiumPaid from $19.95 a month for the Essentials plan (50,000 to 100,000 emails a month)Open source noStars 3.1knpm a week 5.7M
Amazon SES
Amazon Web Services email service billed by usage, from $0.10 per 1,000 emails.
Pricing Pay as you goPaid from $0.10 per 1,000 emails sent on à la carteOpen source no
Loops
Email platform for SaaS teams covering marketing, product and transactional email.
Pricing FreemiumOpen source no
Mailgun
Transactional email API and SMTP service, with inbound parsing and email validation, part of Sinch.
Pricing FreemiumPaid from $15 a month for Basic (10,000 emails)Open source no
Postmark and its alternatives, side by side
| Tool | Pricing | Free plan | Paid from | Open source | GitHub stars |
|---|---|---|---|---|---|
| Postmark | Freemium | Yes: 100 emails a month, no credit card, does not expire. | $15 a month for Basic (10,000 emails) | No | None |
| Resend | Freemium | Yes: 3,000 emails a month, 100 a day, 3 custom domains, 10,000 automation runs | $20 a month for the Pro plan (50,000 emails a month) | No | 964 |
| SendGrid | Freemium | Trial only: 100 emails a day for 60 days, no ongoing free tier | $19.95 a month for the Essentials plan (50,000 to 100,000 emails a month) | No | 3.1k |
| Amazon SES | Pay as you go | Yes: a free plan for 6 months after account creation, plus up to $200 in AWS Free Tier credits that must be used within 12 months. | $0.10 per 1,000 emails sent on à la carte | No | None |
| Loops | Freemium | Yes: up to 4,000 emails in any rolling 30 days, sent to your 1,000 newest contacts, with all features and a Powered by Loops footer. | Not listed | No | None |
| Mailgun | Freemium | Yes: 100 emails a day, 1 custom sending domain, 2 API keys, 1 inbound route, 1 user. | $15 a month for Basic (10,000 emails) | No | None |
Pricing facts come from each tool's official pricing page, with the checked date on the tool's own page.
Questions
What is the most popular alternative to Postmark?
By GitHub stars, Resend is the most used alternative to Postmark listed on ScratchDB, with 964 stars.
Which Postmark alternatives are open source?
None of the Postmark alternatives listed here are open source.
Which Postmark alternatives have a free plan?
Resend, Amazon SES, Loops and Mailgun have a free plan. The table on this page shows what each one includes.