MailerSend vs OpenSend
MailerSend
mailersend.comOpenSend
opensend.namuh.coSide by side
| Figure | MailerSend | OpenSend |
|---|---|---|
| Price from | $7/mo | $10/mo |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 5 | 5 |
| Spec score · Email APIs | 9.0 (#1) | 7.3 (#25) |
| Company | MailerSend says it was launched by the team behind MailerLite and is a United States-registered company. | The homepage says OpenSend is built by Jaeyun Ha and Ashley Ha. |
| Integrations | Official integrations include WordPress, WooCommerce, Firebase, Symfony, React Email, Supabase, Make, NocoDB, Pipedream, Zapier-related tools and others. | The self-hosting guide documents AWS SES/SNS, PostgreSQL, Redis, S3, Cloudflare DNS automation, and Google OAuth configuration. |
| Product | MailerSend provides transactional email delivery through an email API and SMTP relay. | OpenSend describes itself as an open email infrastructure platform with a Resend-compatible API, SDK, broadcasts, contacts, and dashboard. |
| Support | Official plans provide email support, live chat on higher tiers, priority support and onboarding assistance for Professional customers. | The Free and Lite plans include community support, Starter has email support with a 48-hour response target, and Growth has priority support with a 12-hour target. |
| Webhooks | Webhooks notify applications about email and SMS events for workflow triggers and delivery monitoring. | Outbound webhooks use HMAC signatures with Svix-compatible headers, which recipients should verify before processing events. |
Plans
MailerSend
- FreeFree
- Hobby$7 a month
- Starter$35 a month
- Professional$110 a month
- EnterprisePriced on request
OpenSend
- Lite$10 a month
- Starter$19 a month
- Growth$99 a month
- FreePrice not published
- ScalePriced on request
In their own words
MailerSend
MailerSend delivers transactional email through an email API and SMTP relay. Its editing tools include drag-and-drop, HTML and rich-text editors, along with dynamic templates and split testing. Webhooks, tracking, real-time activity, analytics and suppression-list management support monitoring. Inbound routing can parse replies into application events and route them to an app for further action. Integrations listed include Zapier, Supabase, Firebase, Slack, Laravel, WooCommerce, WordPress, ChatGPT and Claude. The Free plan is free and allows 500 emails per month, 100 daily API requests, one domain and one template. Hobby costs $5.60 a month, billed $67.20 yearly, and includes 5,000 emails per month. The pricing note lists paid plans from $7/mo. A 14-day Professional trial includes 500 emails per month, 100 daily API requests and one day of log retention. MailerSend is available on web, API and iOS; its mobile app is currently only available for iOS. It states that it is GDPR-compliant and hosts services in a certified ISO 27001 data center in Belgium.
OpenSend
OpenSend has no write-up on Specifiction yet; its figures are above.