Editor's pick
Resend
A modern transactional email API for developers.
What it is
Built around developer experience: clean SDKs, templates written in React with React Email, delivery webhooks and a dashboard with the status of every send. It requires verifying the domain with DNS before sending in production.
Best for
Verification emails and notifications for a small app.
What the free plan includes
- 3,000 emails per month
- Maximum 100 emails per day
- 1 verified domain
- 1 day of log retention
Free plans change often. Confirm the limits on the official page before deciding.
Brevo
Transactional email, campaigns and CRM on one platform.
300 emails per day
Mailjet
Transactional and marketing sending with a collaborative editor.
6,000 emails per month
Mailtrap
A sandbox for testing email, plus real transactional sending.
4,000 emails per month for sending, plus a test sandbox