Instant Email Previews

See screenshots of your emails across 50+ apps and devices to ensure compatibility in all environments.

Get started for free View all email clients

How do email previews work?

Litmus delivers previews of your email in 50+ apps and devices in seconds.

1. Send your test email to Litmus

Your test email is sent to our bay of 1600 physical 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 50+ clients instantly

You receive previews of your email in 50+ clients just seconds after you sent it.

Test your emails across 50+ apps and devices

Available in Builder and Checklist, start previewing your emails to ensure they look great and perform everywhere.


Build, test, and troubleshoot your emails with the only code editor built specifically for email.

Learn more about Builder