SendGrid (Twilio) vs Resend
Legacy email infrastructure at scale — 100B+ emails/year
vs. The email API for developers — built by the Nodemailer team
Pricing tiers
SendGrid (Twilio)
Free Trial
100 emails/day for 60 days. After: upgrade required.
Free
Essentials — 50k
50,000 emails/month. 1 teammate. 2 event webhooks.
$20/mo
Essentials — 100k
100,000 emails/month.
$35/mo
Pro — 100k
100,000/mo. Dedicated IPs + subusers + email validation (2.5k). 1000 teammates. 5 webhooks.
$90/mo
Pro — 2.5M
2,500,000/mo. Same Pro features.
$449/mo
Premier (5M+)
Custom. SSO, custom overage rates, white-glove.
Custom
Resend
Free
3,000 emails/month, 100 emails/day. 1 custom domain. Ideal for side projects.
Free
Pro — 50k
50,000 emails/month. 10 custom domains. Priority support.
$20/mo
Pro — 100k
100,000 emails/month. 10 custom domains.
$35/mo
Scale — 100k+
Tiered from 100k → 2.5M emails/month. Dedicated IP add-on available.
$90/mo
Scale — 2.5M
2.5M emails/month.
$1150/mo
Enterprise
3M+/month, dedicated IP included, SSO, custom contract.
Custom
Free-tier quotas head-to-head
Comparing free-trial on SendGrid (Twilio) vs free on Resend.
| Metric | SendGrid (Twilio) | Resend |
|---|---|---|
| custom domains | — | 1 domains |
| emails per day | — | 100 emails/day |
| emails per month | — | 3000 emails/month |
Features
SendGrid (Twilio) · 12 features
- Dedicated IPs — Auto IP warmup, multiple IP pools per brand/customer.
- Dynamic Templates — Handlebars-based with versioning + A/B testing on subject/content.
- Email API (v3) — REST + SMTP. Dozens of endpoints for mail, stats, templates, subusers.
- Email Validation — Verify email addresses before sending. Credits per check.
- Event Webhook — Raw stream of send/delivery/bounce/open/click/unsubscribe/spamreport events.
- Inbound Parse — Route incoming mail → your webhook. Attachments + spam score.
- Link Branding — Track links on your own domain for reputation.
- Marketing Campaigns — Separate UI for bulk promotional sends. Segmentation, A/B, automation.
- SAML SSO — Premier tier only. SAML 2.0 auth for account access.
- Stats + Reports — Aggregated + per-category + per-subuser delivery metrics.
- Subusers — Isolate multi-tenant sends. Each subuser has own stats + API key + reputation.
- Suppression Groups — Granular unsubscribe groups (newsletter vs billing, etc.).
Resend · 12 features
- Audiences — Contact list management with custom fields.
- Batch Send — Send up to 100 emails in one API call.
- Broadcasts — Bulk email campaigns with audiences, A/B testing, analytics.
- Dedicated IP — Add-on for high-volume senders. Auto warmup.
- Domains — DKIM/SPF/DMARC auto-verification. Per-domain analytics.
- Idempotency — Prevent duplicate sends with Idempotency-Key header.
- Logs + Analytics — Full email logs, delivery heatmap, events table.
- React Email — OSS library (3M+ downloads) to compose emails in React/JSX.
- Scheduled Send — scheduledAt parameter for future delivery.
- Send API — POST /emails endpoint to send. Supports attachments, scheduled send, idempotency…
- Suppressions — Auto-managed bounce + complaint list. API to add/remove.
- Webhooks — Email lifecycle events: sent, delivered, bounced, complained, opened, clicked.
Developer interfaces
| Kind | SendGrid (Twilio) | Resend |
|---|---|---|
| CLI | — | Resend CLI |
| SDK | sendgrid-go, sendgrid-java, @sendgrid/mail, sendgrid-php, sendgrid-python, sendgrid-ruby | react-email, resend-go, resend-node, resend-php, resend-python, resend-ruby |
| REST | SendGrid v3 API | Resend REST API |
| OTHER | Event Webhook, Inbound Parse Webhook, SMTP Relay | SMTP Relay, Webhooks (Svix) |
Staxly is an independent catalog of developer platforms. Outbound links to SendGrid (Twilio) and Resend are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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