How do email previews work?
Litmus delivers previews of your email in 90+ apps and devices in seconds.

1. Create an email in Litmus
Your email is sent to our fleet of 1600 machines, using real email clients that are logged in and ready to receive your email just milliseconds after it’s sent.

2. Our software opens your email
Our software instructs the email client to open your email, all without making any modifications to the email client itself.

3. Litmus captures screenshots
Litmus takes highly optimized, lightning-fast screenshots of your email, delivering the highest quality images that represent exactly what your recipients see.

4. You see your email in 90+ clients instantly
You receive previews of your email in 90+ clients just seconds after you sent it.
Desktop
- Outlook
- Outlook Office 365Win 10
- Outlook Office 365 DarkWin 10
- Outlook Office 365 DarkmacOS 10.15
- Outlook 2019 120 DPIWin 10
- Outlook 2019 Win 10
- Windows 10 Mail Win 10
- Outlook 2016 120 DPIWin 10
- Outlook 2016Win 10
- Outlook 2016macOS 10.12.6
- Outlook 2013 120 DPIWin 10
- Outlook 2013Win 10
- Outlook 2010Win 10
- Outlook 2007Win 10
- Thunderbird
- Thunderbird 60 Win 10
- Apple Mail
- Apple Mail 14macOS 11.0
New
- Apple Mail 14 DarkmacOS 11.0
New
- Apple Mail 13macOS 10.15
- Apple Mail 13 DarkmacOS 10.15
- Apple Mail 12 DarkmacOS 10.14
- Lotus Notes
- IBM Notes 10Win 10
- IBM Notes 9Win 10
- Lotus Notes 8.5Win 10
- Other
- Color BlindnessSimulated
- Plain TextText-only view
Mobile
- iOS
- iPhone 12 Pro MaxiOS 14.2
New
- iPhone 12 Pro Max DarkiOS 14.2
New
- iPhone 12 MiniiOS 14.2
New
- iPhone 12 Mini DarkiOS 14.2
New
- iPhone 12iOS 14.2
New
- iPhone 12 DarkiOS 14.2
New
- iPhone 11iOS 14.2
New
- iPhone 11 DarkiOS 14.2
New
- iPhone 11iOS 13.1
- iPhone 11 ProiOS 13.1
- iPhone 11 Pro DarkiOS 13.1
- iPhone 11 Pro MaxiOS 13.1
- iPad Air (Gen 4)iOS 14.2
New
- iPad (Gen 7)iOS 13.1
- iPad (Gen 7 Dark)iOS 13.1
- iPad Pro (11 inch)iOS 13.1
- iPhone XRiOS 12.0
- iPhone XSiOS 12.0
- iPhone XS MaxiOS 12.0
- iPhone SEiOS 14.2
- iPhone SE (Gen 2)iOS 14.2
- iPad Pro (10.5in)iOS 13.1
- iPhone 8iOS 12.0
- iPhone 8 PlusiOS 12.0
- iPad Pro (12.9 inch)iOS 13.1
- iPad (Retina)iOS 13.1
- Gmail AppiOS 13.4.1
- Gmail App DarkiOS 13.4.1
New
- Microsoft OutlookiOS 12.0
- Android
- Gmail AppAndroid 10.0
- Gmail App DarkAndroid 10.0
- Gmail AppAndroid 9.0
- Gmail AppAndroid 8.0
- Gmail AppAndroid 7.1
- Gmail AppAndroid 6.0
- Android 6.0Android 6.0
- Microsoft OutlookAndroid 7.0
- Samsung MailAndroid 7.0
- Samsung MailAndroid 6.0
- Android 5.1Android 5.1
- Gmail App (IMAP)Android 6.0
Web
- AOL Mail
- AOL Mail Explorer
- AOL Mail Firefox
- AOL Mail Chrome
- Comcast
- Comcast Explorer
- Comcast Firefox
- Comcast Chrome
- Freenet.de
- Freenet.de Explorer
- Freenet.de Firefox
- Freenet.de Chrome
- Gmail
- Gmail Explorer
- Gmail Firefox
- Gmail Chrome
- GMX.de
- GMX.de Explorer
- GMX.de Firefox
- GMX.de Chrome
- G Suite
- G Suite Explorer
- G Suite Firefox
- G Suite Chrome
- Mail.ru
- Mail.ru Explorer
- Mail.ru Firefox
- Mail.ru Chrome
- Office 365
- Office 365 Explorer
- Office 365 Firefox
- Office 365 Chrome
- Outlook.com
- Outlook.com Explorer
- Outlook.com Firefox
- Outlook.com Dark Firefox
- Outlook.com Chrome
- Outlook.com Dark Chrome
- t-online.de
- t-online.de Explorer
- t-online.de Firefox
- t-online.de Chrome
- Web.de
- Web.de Explorer
- Web.de Firefox
- Web.de Chrome
- Yahoo! Mail
- Yahoo! Mail Explorer
- Yahoo! Mail Firefox
- Yahoo! Mail Chrome
Test with Litmus wherever you work.
Preview and test your emails directly on your desktop or within your email service provider with the Litmus Extension.
Builder
Efficiently create, edit, and navigate code faster than ever before with Litmus Builder.
Checklist
Get guided checks of the critical elements that affect performance before you send.