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Mailinator vs 33Mail: catalog facts
Mailinator	33Mail
Freemium Public inboxes are free; private domains and testing features need a paid subscription…	Free Free for unlimited aliases on the 33mail subdomain.
Web	Web
Public inboxes need no registration API and webhooks for automated tests	Unlimited free aliases on the service's subdomain Simple to create a new alias on demand for any signup
Public inboxes can be read by anyone Testing features require a paid plan	Aliases live on 33mail's shared subdomain rather than a custom domain on the free tier Long-running service with a dated interface compared to newer alternatives
Web application, Hosted service	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.