SMS Testing

End-to-end SMS testing for seamless SMS automation

Mailosaur is the leading customer communication testing platform, specialising in email and SMS testing for any app, product or campaign.

Ensure that your SMS automations are tested and perfected before they leave your systems with Mailosaur’s automated SMS testing platform.

An SMS message being processed by Mailosaur

Mailosaur SMS Testing

Verify that SMS messages are delivered on time

Test identity and account verification codes sent via SMS

Ensure your promotional text messages are seen

Prove that your order update notifications are working

Verify that SMS reminders are sent out at the right time

Reply to messages just like a customer would.

A message with a verification code, with data being extracted by Mailosaur

Use dedicated test mobile numbers, not your own phone

Access international mobile numbers that are dedicated to your business, so you never need to use your own mobile number.

Automate SMS testing, with any framework

Mailosaur lets you automate the testing of SMS messages, just like email, no matter if you use Cypress, Playwright, Robot Framework, or anything else.

Send customers the right message

Ensure that your customers are receiving the right message, before they’re sent out.

The logos of various test frameworks

Share access with your team

Mailosaur lets you see received SMS messages in one place, allowing you to securely manage access to all your messages.

Share phone numbers and messages with your whole team for seamless collaboration.

Teams accessing an SMS message

Continuously improve the quality of your product

Multi-factor Authentication

Test verification and one-time password (OTP) codes sent via SMS, to be sure product security isn’t compromised.


Ensure that SMS notifications and reminders are sent at the right time, with the right information.

Broken Links

Find and fix broken links in your SMS messages.

Phone Numbers

Use Mailosaur phone numbers, to simulate real users.

Why businesses choose Mailosaur

Mailosaur is the only all-in-one testing platform you will ever need. Use our API to ensure your product is absolutely seamless for your customers. Our software supports vital tests to help QAs, marketers, engineers and product managers meet individual goals and objectives, as a team.


Everything you need to test customer communication

Email Testing

Create end-to-end tests that rely on email. Test account verification emails, password resets, email tracking, and more

Email Previews

Instantly see how your email will look to any recipient, no matter what email client they use, so there are no nasty surprises.

SMS Testing

Build text messages that work. Create end-to-end tests that cover identity verification, alerting, promotional messages and more

Ready to get started?

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