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Test with Litmus Wherever You Build: Introducing the Litmus Extension


Think about the last email you built: How many tools did you utilize to get it out the door? It’s likely quite a few. For example, you might build your email in your favorite code editor, then test it in your preferred testing tool, and finally move your email to your email service provider (ESP)—and when you spot an error, you have to start the process all over.

That’s a lot of switching between tools—and a lot of time-consuming copying and pasting that is prone to errors. We believe that you should spend less time on repetitive and mundane tasks, and more time building great email.

That’s why we’re excited to introduce the Litmus Extension—a powerful Chrome extension that brings the power of Litmus Checklist and Email Previews wherever you build your emails, so you can say goodbye to switching back and forth between tools.

Whether you’re using a local editor (like Dreamweaver) or prefer your ESP’s email editor to create your emails, with the Litmus Extension you can preview, troubleshoot, and optimize your emails without leaving your build environment. Make building and testing emails an integrated, quick, and easy experience. Here’s how Litmus Extension can get your emails out the door, faster.


Bring the power of Litmus Email Previews directly to your desktop

Whether you’re using Dreamweaver, Sublime Text, or any other code editor—with Litmus Extension, you can preview your local HTML files in dozens of email clients in just seconds. Every update you make automatically updates your Email Previews, too.

The Litmus Extension works with all text editors, task runners, and localhosts, including:

  • Dreamweaver
  • Sublime Text
  • Atom
  • Coda
  • Brackets
  • Grunt
  • Gulp
  • Zurb’s Foundation for Emails
  • MJML
  • And really any editor you’re using!

Test and troubleshoot your email directly within your ESP

Does your team use your ESP’s email editor to create emails? Stop switching between your ESP and Litmus to test your emails. With the Litmus Extension, you can build your email in your ESP’s email editor, and test your email right in your ESP, too. Run a full Checklist to preview your email in popular email clients and devices and spot issues like missing links, broken images, or missing ALT text without ever leaving your ESP.

The Litmus Extension works with the following ESPs (and more coming, soon!):

  • MailChimp
  • Campaign Monitor
  • Eloqua
  • IBM Watson Campaign Automation (formerly Silverpop)
  • Salesforce Marketing Cloud (formerly ExactTarget)

Here’s what people have to say about the Litmus Extension

As part of our Litmus Beta program, we invited a few customers to test the Litmus Extension to gather feedback and improve our product before fully launching. Here’s what a few of them had to say about it:

Litmus’ new browser extension is as magical and useful as it sounds. Litmus has long been an essential tool in my development toolbox and now I can’t imagine living without their browser extension.

Daniel Brown, Griffin Technology

I love the new Litmus extension, it really speeds up our workflow. Before we had to copy and paste code into Litmus or email a test over, but with this new Litmus extension we can automatically run tests direct from our build environment every time the code updates.

Mark Robbins, Rebel

Take the Litmus Extension for a spin

Ready to speed-up your email development workflow? Learn more, head to the Google Chrome store to install the Litmus Extension, or share the love on Product Hunt!

Kevin Mandeville

Kevin Mandeville

Kevin Mandeville was a Product Manager at Litmus