toolgrep / Testing & QA / Mailinator
Alternatives to Mailinator
Mailinator: Email and SMS workflow testing for developers and QA teams. 8 products similar to Mailinator, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 8 of 8 have an API, 5 of 8 offer an MCP server.
- Mailsac
Disposable test email addresses for QA and developers
- MailerSend
Transactional email, SMS, and WhatsApp delivery service with a REST API and SMTP relay
- emailvalidation.io
Free email checker and validator: verify any email address with syntax, MX record and live mailbox checks, validate lists in bulk or use the API.
- Email Spam Tester
Free email spam checker: send one message and get a SpamAssassin score, SPF, DKIM and DMARC checks, blocklists and optional inbox placement. No signup.
- Mail-Tester
Test your emails for spam score and configuration problems
- Mailtrap
Email delivery platform for developer and product teams: Email API/SMTP sending, email testing sandbox, and email marketing.
- Webhook.site
Test, transform and automate web requests and emails
- Maileroo
SMTP relay and email API for transactional and marketing email
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| Mailinator | Freemium | yes | yes | no | yes | no |
| Mailsac | Freemium · from 0 | yes | yes | yes | yes | no |
| MailerSend | Freemium | yes | yes | yes | yes | no |
| emailvalidation.io | Freemium | yes | yes | yes | yes | no |
| Email Spam Tester | Free | yes | yes | yes | no | no |
| Mail-Tester | Freemium | yes | yes | no | no | no |
| Mailtrap | Freemium · from $15 | yes | yes | yes | yes | no |
| Webhook.site | Freemium · from 7.5 | yes | yes | — | — | — |
| Maileroo | Freemium · from $10/mo (25,000 emails); free tier with 3,000 emails/month | yes | yes | no | yes | no |
Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.
API
curl https://toolgrep.com/api/products/mailinator/alternatives