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
SendGrid alternatives
5 tools you can use instead of SendGrid, ranked by live GitHub stars and npm downloads. Resend, Postmark and Amazon SES are the most used. Stats updated 17 hours ago.
When SendGrid is not a good fit
SendGrid is an email delivery platform, now branded Twilio SendGrid, offering a REST and SMTP API for transactional email plus a marketing email tool with templates and analytics. Twilio acquired SendGrid in 2019 and in 2026 folded its website and docs into twilio.com, though the product, API and dashboard still operate under the SendGrid name and app.sendgrid.com. Plans start with a 60-day free trial and run from $19.95 a month.
It is a weaker choice for:
- New projects that just need a small, free ongoing email allowance, since SendGrid's free tier is a 60-day trial rather than a permanent free plan
- Teams that want a lightweight, developer-first API with a generous free tier, where newer competitors are often cheaper
- Anyone who wants a self-hosted or open source email sending platform
The alternatives
Most used first.
SendGrid vs Resend
Postmark
Email delivery service for transactional and broadcast email, owned by ActiveCampaign.
Pricing FreemiumPaid from $15 a month for Basic (10,000 emails)Open source nonpm a week 1.4M
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
SendGrid and its alternatives, side by side
| Tool | Pricing | Free plan | Paid from | Open source | GitHub stars |
|---|---|---|---|---|---|
| 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 |
| 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 |
| Postmark | Freemium | Yes: 100 emails a month, no credit card, does not expire. | $15 a month for Basic (10,000 emails) | No | None |
| 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 SendGrid?
By GitHub stars, Resend is the most used alternative to SendGrid listed on ScratchDB, with 964 stars.
Which SendGrid alternatives are open source?
None of the SendGrid alternatives listed here are open source.
Which SendGrid alternatives have a free plan?
Resend, Postmark, Amazon SES, Loops and Mailgun have a free plan. The table on this page shows what each one includes.