Resend
Swell
| Feature | Resend | Swell |
|---|---|---|
| Pricing | Free / from $20/mo | Free / from $299/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.6 / 5 | 4.3 / 5 |
| Best For | developers, saas-products, startups, indie-hackers | developers, subscription-businesses, custom-ecommerce, b2b-commerce |
| Founded | 2022 | 2016 |
| Transactional Email | ✓ | ✗ |
| React Email | ✓ | ✗ |
| Webhooks | ✓ | ✓ |
| Custom Domains | ✓ | ✗ |
| Analytics | ✓ | ✗ |
| Dedicated Ips | ✓ | ✗ |
| Api | ✓ | ✗ |
| Headless Api | ✗ | ✓ |
| Subscriptions | ✗ | ✓ |
| Multi Currency | ✗ | ✓ |
| Custom Models | ✗ | ✓ |
| Admin Dashboard | ✗ | ✓ |
✓ Resend Pros
- Best developer experience for sending emails
- React Email for building templates with components
- Free tier with 100 emails/day (3,000/month)
- Excellent deliverability with dedicated IPs available
✗ Resend Cons
- Marketing email features are minimal
- Newer platform with less enterprise track record
- No built-in email editor for non-developers
✓ Swell Pros
- Extremely flexible API
- Built-in subscription support
- Good for unique business models
- Developer-friendly
✗ Swell Cons
- Requires development resources
- Expensive for small stores
- Smaller ecosystem
The Verdict
Resend is built for developers and saas products, with a focus on transactional-email and react-email. Swell targets developers and subscription businesses and leads with headless-api and subscriptions.
On pricing, Resend is the clear winner for budget-conscious users — starting at $20/mo compared to $299/mo for Swell. That $279/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Feature-wise, Resend offers broader built-in capabilities (7 features vs 6), while Swell takes a more focused approach — which can mean a simpler, faster onboarding experience.
Both tools are a solid fit for developers — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.
Bottom line: Resend has a slight overall edge — but if extremely flexible api matters most to you, Swell may still be the right call.