Twilio vs Resend: Which Should You Use to Send Email in 2026?
A side-by-side comparison of Twilio (SendGrid) and Resend for transactional email — pricing, developer experience, deliverability, and which one fits a small engineering team.
Updated 2026-09 · 2026
Twilio
Cloud communications platform for SMS, voice, video, and email (via SendGrid)
Strengths
- +One platform for SMS, voice, WhatsApp, video, and email
- +Mature infrastructure trusted by large enterprises
- +SendGrid's deliverability reputation and IP warmup tools
Weaknesses
- -Pricing and product structure are fragmented (Twilio Core vs SendGrid vs Twilio Email API)
- -Steeper learning curve if you only need email
- -Free tier is limited (100 emails/day) and support is slow on lower plans
Best for
Teams that need SMS, voice, or multi-channel messaging alongside email, or that are already on Twilio for other communication needs
Resend
Email API platform for developers to send transactional emails reliably
Strengths
- +Built specifically for developers — clean API, great docs, fast setup
- +Native React Email support for building templates in code
- +Generous free tier: 3,000 emails/month, 100/day
Weaknesses
- -Email only — no SMS, voice, or WhatsApp
- -Younger company with less enterprise track record than Twilio
- -Advanced deliverability tooling (dedicated IPs) less mature than SendGrid
Best for
Developers and small teams who only need transactional email and want a fast, code-first setup without multi-channel bloat
Feature Comparison
| Feature | ||
|---|---|---|
| Free tier | 100 emails/day (SendGrid free) | 3,000 emails/mo, 100/day |
| Entry paid plan | $19.95/mo (50k emails) | $20/mo (50k emails) |
| SMS / Voice / WhatsApp | Yes, full platform | No — email only |
| React Email / JSX templates | No | Yes, native support |
| SMTP relay | Yes | Yes |
| Webhooks / event tracking | Yes | Yes |
| Domain authentication (SPF/DKIM) | Yes | Yes |
| Dedicated IP option | Yes (Pro tier) | Yes (higher tiers) |
| Developer experience / API design | Functional but dated | Modern, minimal, well-documented |
| Multi-language SDKs | Extensive | Growing (JS/TS, Python, Ruby, Go, PHP) |
| Best for | Multi-channel communication | Pure transactional email |
The Verdict
If you only need to send transactional email from your app, Resend is the better default — the API is simpler, the free tier is more usable, and React Email support makes template building far less painful. Twilio (via SendGrid) makes sense if you're already using Twilio for SMS or voice and want everything under one billing account. For a small team building a product from scratch, Resend wins on developer experience and cost predictability.
How to switch from Twilio to Resend
- 1Export your suppression lists (bounces, spam reports, unsubscribes) from SendGrid's Settings > Suppressions page as CSV, and export any marketing contact lists from Marketing > Contacts as CSV.
- 2Manually copy your dynamic email templates' HTML/JSON from the SendGrid template editor since there's no automated export — recreate them as React Email components or plain HTML in Resend.
- 3Create a Resend account, verify your sending domain (SPF, DKIM records) in the Resend dashboard, and generate a new API key.
- 4Import your suppression list into Resend by re-adding known bounced/unsubscribed addresses to your app's own suppression logic, since Resend doesn't have a bulk suppression import.
- 5Update your app code to swap the SendGrid SDK calls for Resend's SDK (`resend.emails.send()`), and update any webhook endpoints to point to Resend's event webhooks instead of SendGrid's.
- 6Run both providers in parallel for a week, monitor deliverability and bounce rates in Resend's dashboard, then fully cut over and cancel your SendGrid/Twilio email plan.
Twilio vs Resend: common questions
How do I export my email data and templates from Twilio SendGrid?+
In the SendGrid dashboard, go to Settings > Suppressions and Stats to export unsubscribe/bounce lists as CSV, and use the Marketing Campaigns export for contact lists. Dynamic templates can be copied manually via the template editor's HTML/JSON export since there's no bulk template export API — you'll need to pull each template's code individually.
What features do I lose moving from Twilio to Resend?+
You lose SMS, voice, WhatsApp, and video — Resend only handles email. You also lose SendGrid's built-in marketing campaign tools (contact lists, drip sequences) and dedicated IP warmup automation, though Resend offers dedicated IPs manually on paid plans.
Is Resend's free tier enough for a small team?+
Yes, for most early-stage apps — 3,000 emails/month covers signup confirmations, password resets, and low-volume notifications for a small user base. If you send marketing newsletters or have more than a few hundred active users, you'll hit the 100/day cap quickly and need the $20/mo Pro plan.
Does Resend integrate with the tools I'm already using?+
Resend has official SDKs for Node.js, Python, Ruby, PHP, Go, and Rust, plus integrations with Next.js, Vercel, and Supabase. It doesn't have the breadth of Zapier-style integrations SendGrid built up over a decade, so custom webhook setup is more common.
Will switching from Twilio to Resend actually save money long-term?+
At low-to-mid volume (under 100k emails/month) pricing is nearly identical — both charge around $20/mo for 50k emails. Savings mainly come from not paying for SendGrid's marketing campaign add-ons or SMS features you don't use, so the real savings depend on which Twilio products you're currently paying for.
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