Resend

email_messaging

The developer-first email API — built for React Email and the modern stack.

Best For

Developer teams using React/Next.js who want to write email templates as JSX components.

✓First-class React Email support — JSX components as email templates

✓Clean modern API with excellent DX

✓Idempotency keys for safe retries

✓Fast growing ecosystem

✓Generous free tier

Not ideal for: Teams needing a drag-and-drop email builder for non-technical users, or EU data residency.

transactional email— Core product — React Email templates with great DX

native

marketing email— Marketing campaigns with contact list management

native

react email— First-class React Email integration — JSX-based templates

native

inbound email— Inbound email routing now available

native

drag and drop editor— No visual drag-and-drop template builder — code-only

unsupported

eu hosting— No EU-hosted infrastructure — data processed in US

unsupported

Backend

nodepythonrubygophpelixirrust

Model: usage based
Free Tier: 3,000 emails/month, 100/day. 1 domain.
Paid Starts At: $20/month
Notes: Pro: 50k emails/month, 10 domains. Scale: 100k+. No per-email fee on plan limits.