Resend vs SendGrid vs Mailgun 2026: Which Email API Gives the Best Developer Experience?
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·ę ē®š March 19, 2026š 4 min read
Resend has rapidly gained developer mindshare with its modern API and generous free tier. We compare free quotas, pricing, API experience, and deliverability against SendGrid and Mailgun.
Free Tier Comparison
- Resend: 3,000 emails/mo free (100/day), 1 custom domain
- SendGrid: 100 emails/day free (~3,000/mo), unlimited domains
- Mailgun: 1,000 free only during trial, no permanent free tier
- Postmark: 100 emails/mo free (very limited)
- Verdict: Resend and SendGrid similar quotas, Resend better DX
API Developer Experience
Resendās API is the most modern, influenced by Next.js/Vercel. SDK with native TypeScript, React Email for JSX templatesāsay goodbye to HTML tables. SendGridās docs are massive and complex; Mailgun sits in between.
Pricing Tiers (MidāVolume)
- 50k/mo: Resend $20 vs SendGrid $19.95 vs Mailgun $35
- 100k/mo: Resend $40 vs SendGrid $29.95 vs Mailgun $60
- 1M/mo: Resend $300 vs SendGrid $89.95 vs Mailgun $380
- SendGrid wins at high volume; low volume all similar
Resend is the fastestāgrowing email API (2024ā2026), and its developerāfirst approach has made it the default in the Next.js/Vercel ecosystem.
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For MVPs, Resendās free tier is enough. Above 100k/mo, consider SendGrid Essentials for better pricing.