Compare
Postmark vs Resend
Focused on transactional email delivery with similar API simplicity
Which to pick
Pick Postmark if you want…
- Fast, reliable transactional email
- Transactional email API
- The lower starting price: $15/month against $20/month
- Integrations with cURL (on Postmark's list, not Resend's)
Pick Resend if you want…
- Simple email API with built-in analytics
- Integrations with Node.js, Go or Rust (on Resend's list, not Postmark's)
Side by side
- What it is
- Postmark:Postmark is an email delivery service for sending transactional and marketing emails via API or SMTP.
- Resend:Resend provides a developer-focused email API for sending transactional and marketing emails at scale.
- Best for
- Postmark:Fast, reliable transactional email
- Resend:Simple email API with built-in analytics
- Who it’s for
- Postmark:Developers and teams needing reliable email delivery.
- Resend:Developers building apps that need reliable email sending.
- Pricing
- Postmark:Freemium
- Resend:Freemium
- Plans
- Postmark:Free $0.00/mo · Basic $15.00/mo per month · Pro $16.50/mo per month · Platform $18.00/mo per month
- Resend:Free $0 · Pro $20 per month · Scale $90 per month
- Works with
- Postmark:Python, Ruby, PHP, cURL, SMTP
- Resend:Node.js, Ruby, Python, PHP, Go, Rust, Java, .NET
Postmark features
- Industry-leading deliverability. Ensures emails reach inboxes quickly with vetted IPs and strict spam controls.
- Message Streams. Separates transactional and marketing emails on parallel infrastructures.
- Inbound email processing. Converts inbound emails to JSON and forwards via webhooks.
- Detailed analytics. Provides bounce data, open/link tracking, and activity retention.
- Official SDKs. Libraries for many languages (Node, Python, Ruby, PHP, .NET, etc.) for easy integration.
- Sandbox mode. Test email sending without affecting real recipients.
Resend features
- SDKs & REST API. Official SDKs for Node, Ruby, Python, PHP, Go, Rust, Java, .NET and a REST endpoint.
- Test mode. Simulate email events without sending real messages.
- Modular webhooks. Real-time notifications for deliveries, opens, clicks, bounces, etc.
- React Email editor. Create email templates with React components instead of hand-crafted HTML tables.
- Contact management. Import lists, view attributes and segment contacts via the dashboard.
- Analytics & reporting. Track opens, clicks, bounces and view broadcast performance.
- Domain authentication. DKIM, SPF and DMARC setup plus BIMI support for brand logos.
- Dedicated IPs (add-on). Managed IP warming and autoscaling for high-volume senders.
Postmark vs Resend FAQ
Is Postmark or Resend free?+
Postmark has a free plan; paid plans start at $15/month (Basic). Resend has a free plan; paid plans start at $20/month (Pro).
Which is cheaper, Postmark or Resend?+
Postmark is cheaper to start with: Postmark's Basic plan ($15/month) against Resend's Pro plan ($20/month).
Do Postmark and Resend integrate with the same tools?+
Partly. Both list Python, Ruby, PHP and SMTP. Postmark also lists cURL; Resend also lists Node.js, Go, Rust, Java and 2 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.