Litmus

Personalize & test emails with Litmus—wherever you build.

Litmus: Email Personalization & Testing Extension

"Litmus" is a Chrome extension that allows you to personalize, preview, and troubleshoot your emails directly within your preferred email editor. It saves you time and helps boost the accuracy and engagement of your emails. While the extension is free to download, a paid Litmus account is required for full access to its advanced pre-send testing and personalization features. Learn more and sign up at litmus.com/extension.
Install from Chrome Web Store

Extension stats

Manifest V3
Users: 4,000+
Rating: 4.53
(45)
Version: 1.2.0 (Last updated: 2024-11-26)
Creation date: 2019-12-19
Permissions:
  • tabs
  • scripting
  • storage
  • cookies
  • clipboardWrite
  • offscreen
  • file://*
  • http://localhost/*
  • *://litmus.localhost/*
  • http://127.0.0.1/*
  • See more
Host permissions:
  • <all_urls>
Size: 5.81M
Full description: See detailed description

Other platforms

Not available on Android
Not available on Firefox
Not available on Edge

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Seamless integration into workflow.
  • Flexibility for working with local files and quick feedback loop.
  • Support for testing in multiple email clients.
  • Useful for developers to preview and troubleshoot emails efficiently.
  • Compatible with MailChimp for direct testing.
Cons
  • Doesn't work well with Pardot/Account Engagement.
  • Stopped supporting local image loading, making the desktop app less useful.
  • Bugs affecting scrolling and overall functionality.
  • Inconsistent rendering between the extension and website tests.
  • Many console errors that need fixing.
Most mentioned
  • Amazing tool that enhances the testing process.
  • Useful for email developers.
  • Integration with local development is beneficial.
  • Frequent issues with bugs and errors.
User reviews
Doesn't work with Pardot/Account Engagement even though it says it does on my Plan benefits...
by Gregg Joseph, 2024-09-03

was a big fan, until they stopped supporting images loading from local source. Now the desktop app is virtually useless.
by Chris Low, 2024-05-21

Not possible to switch between different lists when testing manually.
by Arpit Dalal, 2024-04-16
View all user reviews

Extension safety

Risk impact

Litmus requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • Critical ******* ****** ** *** ********* ******** ********** ***************** **** ******************* ********** ************** ******************** *************** **************** *********** *************** ******************** *********************** *********** ****************** ***************** ***********
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • High ****** ******* *** ********* ********* ******** ***** *** ** ********** ****** * ******** ******* *****
Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of Litmus. Use it at your own risk.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details

Promo images

Litmus marquee promo image
Marquee promo image
Litmus small promo image
Small promo image

Similar extensions

Here are some Chrome extensions that are similar to Litmus: