Email designer
Mailosaur’s email designer gives teams consistency, clarity, and confidence in every send.
Trusted by companies of all sizes
Preview emails exactly as customers see them
Mailosaur shows how emails will appear across real email clients and devices, not simulations, allowing teams to catch layout issues and inconsistencies before they become customer-facing issues.
Validating rendering early allows teams to confidently sign off, knowing the experience is consistent everywhere it matters.
Build accessible, inclusive email experiences
Designing emails is one thing. Meeting accessibility standards and regulatory expectations is another.
Mailosaur helps teams validate emails against WCAG 2.2 guidelines, so content is readable, structured correctly, and usable across a wide range of users and devices.
This reduces compliance risk and delivers emails that are clearer, and more inclusive and effective.
Design with confidence across teams
Email design isn’t done in isolation. Product, marketing, QA, and engineering teams all need visibility into how messages look and perform.
Mailosaur provides a shared environment for reviewing email content, gathering feedback, and approving changes. This makes review and sign-off faster, clearer, and more reliable.
Understand compatibility before it becomes a problem
Mailosaur allows teams to analyse how email code performs across environments, helping uncover compatibility issues before they affect real users. This includes identifying inconsistencies in layout, structure, and rendering across inboxes and devices.
This results in a more predictable, consistent experience, regardless of where emails are opened.
Create emails that work everywhere
Mailosaur helps you move beyond guesswork and view emails exactly as your customers will, so every message feels polished, consistent, and user-ready.
It helps teams collaborate more effectively, reduce last-minute changes, and deliver higher-quality email experiences with confidence.
Now test your emails
Emails do not exist in isolation, they are part of larger user journeys.
Messages must be triggered at the right time, include the correct data, and support user interactions such as links, logins, and verification steps. Use Mailosaur's message testing to validate how messages behave across email and SMS, ensuring they are delivered, triggered, and used exactly as intended.
Give it a go
Test end-to-end scenarios, validate emails, and integrate with our API for seamless workflows.
Start your 14-day free trial or book a demo with one of our experts.