Looking for an alternative to Email on Acid?
Preview real emails, not test versions.
Email on Acid helps you check how your email designs render across inboxes. Mailosaur goes beyond the preview, letting you capture real emails and test how they look, behave and function.
Trusted by leading brands worldwide
See what your customers will see
Emails can look great in one inbox and completely different in another.
With Mailosaur, you can preview emails across popular email clients, devices and settings, helping you find problems before your customers do.
See how your emails render across Gmail, Outlook, Apple Mail and more.
Test more than how your email looks
End-to-end email QA that catches issues before your customers do.
Mailosaur gives your teams a complete way to perform full QA email testing – not just see how your emails will look.
Check rendering across inboxes and devices while also testing links, content, personalisation, attachments, accessibility and more.
It's a simple way to spot problems before they reach your customers and keep the entire email testing process in one place.
Preview your emails in minutes
Send your email directly to Mailosaur or paste in your HTML.
Choose the email clients and devices you want to check.
Generate your previews and see exactly how your email looks across different inboxes.
Spot the problem. Make your changes. Check again.
Why choose Mailosaur?
Preview every email
See how personalisation and dynamic content renders across different devices and real inboxes, exactly as recipients will see them.
Review together
Go from review to sign-off faster by simplifying how you share previews and collect feedback from teammates and stakeholders.
Automation-ready
Start with manual email previews any team member can use, then automate previews as part of your QA workflow when you're ready.
Go beyond email previews
Mailosaur is built for teams that care about the quality of the emails their products and businesses send.
Alongside email previews, Mailosaur helps teams test email and SMS workflows, check email content, validate links and codes, and automate email testing as part of their existing QA processes.
Start with email previews and use more of Mailosaur when you need it.
Customer stories
Getting started with Mailosaur was extremely easy. The interface was intuitive, easy to learn and navigate, making the transition seamless for our team.
Rohit Sonak Sr. Director, Quality Engineering
Find the right plan for your team
Compare pricing plans to find the best fit for your team, company, and email preview needs.
QA automation tailored to your industry
Mailosaur is loved across all industries, helping test the world’s most popular products and services.
Financial
Test banking alerts, two-factor authentication, account updates and more to ensure bulletproof quality with zero surprises.
Healthcare
Validate patient alerts, such as appointment bookings and reminders, by testing real scenarios like invalid contact details to test alerts work.
Media
Test and automate to identify issues early. Ensure event invites and promos include the correct details, RSVP links, codes, and subscription info.
Retail
Automate testing for retail orders, promo codes, and shipping updates to detect issues early and ensure a seamless customer experience.
Travel
Test real-world scenarios like flight updates, delays, gate changes, booking confirmations, check-in reminders, and itinerary updates.
Automotive
Test updates for vehicles or parts – from tracking numbers and delivery times to shipping notifications.
Ready for an Email on Acid alternative?
Take the guesswork out of email previews with a simpler way to review, refine and approve every email.
Get started with your free 14-day trial today.