Resend vs SendGrid
Resend is the modern developer-first email API with React Email and a clean DX. SendGrid is the established giant with 15 years of sending infrastructure. Here is the full comparison.
Key takeaways
Resend is built for modern developers — React Email integration, a clean TypeScript SDK, and a generous 3,000/month free tier. SendGrid is built for enterprise scale — 15+ years of deliverability infrastructure, dedicated IPs, a Marketing Campaigns module, and sub-user management. Both start at around $20/month for 50k emails. The critical 2026 difference: SendGrid removed its permanent free tier in May 2025 and now requires a paid plan after a 60-day trial.
- Resend: free tier 3,000/month (permanent), Pro $20/month (50k emails), then $0.40/1,000 — free tier remains in 2026
- SendGrid: free tier removed May 2025 — now a 60-day trial of 100 emails/day only. Essentials $19.95/month (50k), Pro $89.95/month (100k)
- Resend supports React Email — write email templates as JSX components. SendGrid uses HTML templates only.
- SendGrid has dedicated IPs (+$30/month), Marketing Campaigns, and 15 years of deliverability infrastructure. Resend does not.
Resend vs SendGrid: Quick Comparison
| Features | Resend | SendGrid |
|---|---|---|
| React Email support | Native | No |
| Permanent free tier | 3,000/month | No (60-day trial only) |
| Starting paid price | $20/month (50k) | $19.95/month (50k) |
| Marketing Campaigns | No | ✓ paid add-on |
| Dedicated IPs | ✓ paid | ✓ +$30/month |
| API developer experience | Modern, clean | Established, complex |
| Email activity feed | Basic | Advanced |
| Sub-user management | No | Yes (Pro+) |
| Years of track record | 2 years (2023) | 15+ years (2009) |
| Best for | Modern TypeScript SaaS | Enterprise scale |
What Are Resend and SendGrid?
Resend
A modern transactional email API built for TypeScript and React developers, with React Email integration, a clean SDK, and a permanent free tier that SendGrid no longer offers.
- Free tier: 3,000 emails/month permanently, up to 100 emails/day — significantly more generous than SendGrid's 60-day trial
- Pro: $20/month for 50,000 emails, then $0.40 per 1,000 above that threshold
- React Email integration: write email templates as JSX/TSX components instead of raw HTML tables — a genuine developer experience advantage
- Clean modern REST API with a first-class TypeScript/Node.js SDK; intuitive endpoint naming and excellent documentation
- No Marketing Campaigns module, no advanced deliverability dashboard — purely transactional sending with minimal UI
SendGrid
The largest transactional email API provider (owned by Twilio), with 15+ years of deliverability infrastructure, dedicated IPs, and a Marketing Campaigns add-on.
- Free tier removed May 2025: now a 60-day trial of 100 emails/day only. Paid plan required for ongoing use.
- Essentials: $19.95/month (50k emails/month). Pro: $89.95/month (100k emails). Dedicated IPs: +$30/month.
- Marketing Campaigns module available as an add-on — basic campaign builder and list management for marketing email
- Advanced deliverability tooling: email activity feed, spam testing, bounce and complaint automation, reputation monitoring
- Sub-user management, ISP outreach team, and enterprise-grade compliance features for high-volume enterprise senders
Pricing Models: Resend, SendGrid, and mailtani
Resend: pay-per-email after generous free tier
- Free: 3,000 emails/month, 100/day — permanent, no credit card required
- Pro: $20/month for 50,000 emails, then $0.40 per 1,000 above
- Business: custom pricing for higher volume and dedicated IPs
- No Marketing Campaigns module. No marketing add-on available.
- Free tier advantage: Resend's permanent free tier is the clearest early-stage pricing win vs SendGrid.
SendGrid: monthly flat + per-email above tier; free tier removed 2025
- Free tier removed May 2025. Now a 60-day trial of 100 emails/day only.
- Essentials: $19.95/month for 50,000 emails/month
- Pro: $89.95/month for 100,000 emails; adds dedicated IPs (+$30/month), sub-users, advanced analytics
- Marketing Campaigns: additional cost on top of transactional plan
- At 100k emails, SendGrid Pro is $89.95+$30 dedicated IP = $119.95/month vs Resend Pro at roughly $40/month
mailtani: €89 once, use Resend or SES as your SMTP backend
- One-time €89 payment — no monthly fee, no per-email charges beyond your SMTP provider
- Connect Resend Pro ($20/month) as the SMTP backend and get sequences and warmup on top
- Or connect AWS SES (~$0.10/1,000 emails) for the cheapest possible sending infrastructure
- The marketing layer — sequences, warmup, broadcasts, rotation — is included in the one-time payment
Resend vs SendGrid: The Full Breakdown
Resend's developer experience is a genuinely different product philosophy. The API uses clean REST conventions with intuitive endpoint naming, the TypeScript SDK is first-class, and React Email lets developers write email templates as JSX components that live in their codebase — no external template builder, no wrestling with HTML tables and inline CSS. For Next.js and TypeScript teams, this approach means email templates are versioned, testable, and component-reusable. React Email reached 920,000 weekly npm downloads in late 2025, reflecting real adoption in the developer community.
SendGrid's deliverability infrastructure is its most defensible advantage. Fifteen years of ISP relationships, reputation monitoring, bounce and complaint automation, dedicated IPs, and an in-house deliverability team are not things a two-year-old API can replicate quickly. For companies sending millions of transactional emails per month where inbox placement matters at the decimal level, SendGrid's track record provides genuine risk reduction. Resend is catching up fast, but it has not yet operated at the same scale or for the same duration.
The free tier change is the most important pricing difference in 2026. Resend maintains a permanent free tier of 3,000 emails/month. SendGrid removed its permanent free tier in May 2025 and now offers only a 60-day trial before requiring a paid plan. For early-stage projects, side projects, and bootstrapped SaaS founders, Resend's free tier is a meaningful practical advantage that makes it the default starting point for new projects.
Marketing email is where both platforms fall short. Neither Resend nor SendGrid is a full marketing email tool. SendGrid's Marketing Campaigns module exists but is a secondary product bolted onto a transactional API. There is no sequence builder, no warmup, no campaign editor on Resend. Founders who need both transactional and marketing email — password resets AND onboarding sequences AND broadcast newsletters — end up using an API for transactional and a separate tool for marketing, paying for both every month.
How Resend, SendGrid, and mailtani Compare, Feature by Feature
| Feature | Resend | SendGrid | mailtani |
|---|---|---|---|
| React Email template support | |||
| Modern TypeScript SDK | |||
| Permanent free tier | |||
| Marketing Campaigns module | |||
| Advanced deliverability tooling | |||
| Dedicated IPs available | |||
| Sub-user management | |||
| Email activity feed | Basic | ||
| Spam testing built in | |||
| DKIM / SPF simple setup | |||
| Webhook events | |||
| ISP outreach / reputation support | |||
| SMTP relay supported | |||
| Clean minimal interface | |||
| Enterprise volume scale | |||
| Bring your own SMTP (for marketing) | |||
| Marketing sequences / warmup | |||
| Flat one-time pricing | |||
| No contact-count billing | |||
| Campaign editor |
The Third Option: Why Founders Pick mailtani
- Connect Resend or SendGrid as your SMTP backend and run marketing sequences, warmup, and broadcasts on top — all for a one-time €89 payment
- No per-email fees beyond your SMTP provider cost — AWS SES behind mailtani runs ~$0.10 per 1,000 emails
- Both Resend and SendGrid charge $20-$90/month for infrastructure only with no marketing layer; mailtani adds the full marketing layer for free after the one-time payment
- Founders and indie hackers on tight budgets get professional email infrastructure without ongoing platform fees
What Each Tool Is Built For
Resend
Optimised for modern TypeScript and React SaaS teams who want a clean API, React Email templates, and a generous free tier for early-stage projects.
Resend is the right choice for indie hackers, SaaS founders, and developers building on Next.js, TypeScript, or a modern Node.js stack. React Email integration means email templates are JSX components in your codebase — not a separate drag-and-drop builder — which fits how modern developers think. The permanent free tier at 3,000 emails/month removes billing friction for early-stage projects. The trade-offs are clear: Resend does not have advanced deliverability dashboards, a Marketing Campaigns module, or 15 years of ISP relationships. For straightforward transactional email from a modern SaaS app, it is often the cleanest choice in 2026.
SendGrid
Optimised for established businesses sending high volumes of transactional email who need proven deliverability infrastructure, dedicated IPs, and enterprise features.
SendGrid is the right choice when reliability track record and advanced deliverability tooling matter more than developer experience cleanliness. Its 15 years of ISP relationships, reputation management team, bounce automation, sub-user management, and Marketing Campaigns module make it the strongest full-featured option at enterprise scale. The trade-offs: the API is older and more complex than Resend, the free tier was removed in May 2025 making it more expensive for early-stage projects, and the interface carries the weight of a platform built over many years.
Resend vs SendGrid: Who Should Choose Which?
Choose Resend if...
- You are building on a modern TypeScript or Next.js stack and want React Email templates in your codebase
- You want a clean, minimal API without the legacy complexity of older email infrastructure platforms
- Your project is early-stage and you want a permanent free tier before committing to a paid plan
- You prioritise developer experience and a modern SDK over advanced deliverability dashboards
- Your sending volume is under 50,000 emails per month and you want the best DX at that scale
Choose SendGrid if...
- You send very high email volumes where 15 years of ISP relationships and deliverability track record matters
- You need advanced deliverability tooling: dedicated IPs, reputation monitoring, bounce automation, spam testing
- You want Marketing Campaigns alongside transactional email in one platform
- You need sub-user management, ISP outreach support, or enterprise compliance features
- You are migrating from an existing SendGrid setup and continuity outweighs DX improvement
Resend vs SendGrid: Pros & Cons
Resend
Pros
- React Email support — write templates as JSX components in your codebase; no external builder or raw HTML table wrestling
- Permanent free tier — 3,000 emails/month forever; SendGrid removed its free tier in May 2025
- Clean modern API — intuitive TypeScript SDK, clear endpoint naming, excellent documentation for modern stacks
- Simple DKIM/SPF setup — domain verification is faster and less error-prone than SendGrid's configuration process
- Minimal interface — focused on what developers need; no feature bloat from 15 years of product additions
Cons
- No Marketing Campaigns — purely transactional; no campaign builder, sequence editor, or list management
- No advanced deliverability tools — limited spam testing, no reputation monitoring dashboard, no ISP outreach team
- Two years old — less battle-tested than SendGrid at extreme enterprise scale and volume
- No sub-user management — cannot create isolated sub-accounts for teams or clients within one Resend account
- Basic email activity feed — less detailed event tracking and analytics than SendGrid Pro's advanced dashboard
SendGrid
Pros
- 15+ years of deliverability infrastructure — proven ISP relationships, reputation management, and enterprise-scale track record
- Advanced deliverability tooling — dedicated IPs, reputation monitoring, spam testing, bounce automation, ISP outreach team
- Marketing Campaigns module — basic campaign builder and list management for marketing email alongside transactional
- Sub-user management — create isolated accounts for teams, clients, or product environments within one parent account
- Extensive integrations — thousands of third-party integrations via Twilio ecosystem and established market presence
Cons
- Free tier removed May 2025 — 60-day trial only; ongoing use requires a paid plan starting at $19.95/month
- Older, more complex API — endpoint naming and SDK feel dated compared to Resend's modern design
- No React Email support — HTML templates only; JSX-based template development is not available
- Higher cost at scale — Pro at 100k emails is $89.95/month plus $30 for dedicated IPs; Resend is roughly $40/month at same volume
- Interface bloat — 15 years of features added to the dashboard creates complexity that simple use cases do not need
Neither Resend nor SendGrid right for you?
Resend and SendGrid are infrastructure only — neither gives you marketing sequences, warmup, or a campaign editor. mailtani wraps either one as your SMTP backend with a full marketing layer on top: sequences, warmup, broadcasts, and rotation. €89 once, no monthly fees beyond your SMTP provider cost.
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