MailSlurp alternative: InboxRhino vs MailSlurp
Looking for a MailSlurp alternative for email-only Playwright or Cypress tests? MailSlurp is a broad email-and-SMS QA platform with many language SDKs. InboxRhino is a narrower receive-only MX inbox with a sandboxed HTML viewer and INR billing designed for Indian teams. Choose InboxRhino when you only need signup, OTP, magic-link, or password-reset mail and want a free tier plus a visual console. Choose MailSlurp when you need SDKs, SMS numbers, placement tests, or a larger free sandbox. Confirm current MailSlurp behaviour on mailslurp.com.
Who each product fits
InboxRhino is for teams that already send real mail from staging and need a public address the suite can wait on. Call REST from Playwright, open the HTML in the console, then delete the inbox. Paid INR checkout is listed and not open yet.
MailSlurp is for teams that want official SDKs, OTP helpers, optional SMS, and a larger free development sandbox (about 50 retained inboxes and 500 inbound emails per month on the public free plan). Phone numbers and SMS are paid add-ons. Pro pricing starts around $50 per month in USD.
| Capability | InboxRhino | MailSlurp |
|---|---|---|
| Receive-only email for tests | Yes, real MX on test.inboxrhino.in | Yes, disposable inboxes on MailSlurp |
| Wait-for-message API | Yes, up to 180s | Yes, waitFor helpers in SDKs and API |
| Visual HTML inbox | Yes, sandboxed in the console | Dashboard with renders and placement tools on paid tiers |
| Official SDKs | Not in v1; call REST from tests | Yes: JavaScript, Java, Python, PHP, Ruby, C#, Go and more |
| SMS / MFA phone numbers | No | Yes on paid phone plans |
| Free access | Live free tier: 11 inboxes / 33 emails | Free forever sandbox: up to 50 inboxes / 500 emails |
| Paid starting price | INR plans listed; checkout not open | Pro from about $50 / month (USD) |
| INR / GST invoices | Designed, checkout coming | USD billing |
| OTP / link extraction helpers | Not in v1; parse text or HTML yourself | Yes in SDKs and API |
Compared on 11 September 2026 from InboxRhino's live product and MailSlurp's public site and pricing page. Competitor cells can change; re-check before you buy. InboxRhino paid checkout is not live.
See Mailosaur alternative, InboxRhino vs testmail.app, Playwright email testing, and InboxRhino pricing.