Look great
Preview your email on 30+ email clients and mobile devices.
Does your email look beautiful everywhere?
Designing emails can be hard. We’ve got you covered. Litmus lets you preview your campaigns across 30+ email clients and devices in minutes. We make email testing easy.
How does it work?
You send us a copy of your email design, either by uploading the HTML or sending us a test email. Within a couple of minutes you'll see screenshots of your email as it's rendered by all the different email clients. Made a change? One click starts a re-test.
Try Litmus with your own email
See email testing in action by uploading your own HTML (or use our sample email) to get real screenshots in seconds. Fill out the form below to begin your email test.
Preview in real email clients
Litmus shows you screenshots of your email newsletter as it looks across all major email clients. A comprehensive preflight check for every campaign. See a sample report.
Check on mobile devices
See your email on the most popular mobile devices. Litmus even lets you realistically scroll your email on the device.
Everything in one place
We preview your message on every major mobile device and email client. And with hundreds of servers in our email testing grid, you get results fast.
Mobile devices
- Android 2.3 & 4.0
- iPhone 5 iOS 6
- iPhone 4S iOS 6
- iPhone 3GS iOS 5
- iPad 2 iOS 6
- BlackBerry Text & HTML
- Symbian S60
- Windows Phone 7.5
Email clients
- AOL Mail *
- Apple Mail 4
- Apple Mail 5
- Apple Mail 6
- Gmail *
- Lotus Notes 8.5
- Lotus Notes 8
- Lotus Notes 7
- Lotus Notes 6.5
- Thunderbird
- Outlook 2013
- Outlook 2011 for Mac
- Outlook 2010
- Outlook 2007
- Outlook 2003
- Outlook 2002/XP
- Outlook 2000
- Outlook.com *
- Yahoo! *
Lightning-fast
If you're trying to fix a rendering problem in your campaign, the last thing you want is to wait for your previews. We run hundreds of servers to ensure our system is the fastest in the industry.
Or continue to our spam filter tests,
email analytics and page tests
“Litmus have created an amazing product. It should be part of every marketer’s toolkit.”
—Dave Greiner, Campaign Monitor
“Litmus is untouchable. I've never used anything that comes close.”
—Scott Schwartz
Works with any email provider
Litmus is the perfect complement to your email marketing program. As an independent company, our email testing tools are compatible with any email provider, so there's no need to switch.
Over 100 million tests
In the past five years we've generated more than 100 million email test previews for customers around the world.
Trusted by
...along with 100,000 other email marketers, designers and agencies worldwide.
Litmus is hiring! We're looking for engineers and designers to join our growing team. See all open positions →