MailDev
5.9#22 in email testing softwareFree planFree planWebAPISelf-hosted
VisitMailDev vs MailSlurp
What both publish
| Fact | MailDev | MailSlurp |
|---|---|---|
| Security | MailDev accepts mail from anyone, stores it unencrypted, and has no authentication by default, so the docs warn against exposing it to the public internet or using it for production traffic. | The security policy says data at rest is encrypted with AES-256, data in transit uses TLS/SSL, and daily backups are stored in AWS S3. |
MailDev plans
- MailDevFree
MailSlurp plans
- FreeFree
- Starter$19.99 a month
- Pro$49.99 a month
- Growth$129.99 a month
- EnterprisePriced on request
Pick MailDev if…
It suits developers testing email produced by their projects with a local inbox. It is also useful for teams using SMTP-based applications or compatible AI clients.
Pick MailSlurp if…
It suits developers building email or SMS workflows and teams testing message delivery, inbox placement, or application flows. Teams handling email and attachment data may also find the JSON extraction tool relevant.