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.
Extension stats
Risk impact: Very high risk impact 
Risk likelihood:
Manifest version: 3
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
Email: he*****@litmus.com
URLs: Website ,Privacy policy
Ranking
Other platforms
Not available on Android
Not available on Firefox
Not available on Edge
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Extension summary
Whether you’re using a local editor or your email service provider’s email editor to create emails, Litmus Extension lets you personalize, preview, troubleshoot, and optimize your email right where you build, saving you time and helping you boost email accuracy & engagement.
You can download the Litmus Extension for free, but it requires a paid Litmus account for full access to pre-send email testing and personalization.
Learn more and sign up: litmus.com/extension
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spammy, or outdated.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
Gregg Joseph, 2024-09-03was 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
Chris Low, 2024-05-21Not possible to switch between different lists when testing manually.
by 
Arpit Dalal, 2024-04-16
Arpit Dalal, 2024-04-16Extension safety
Risk impact
Litmus requires a lot of sensitive permissions. Exercise caution before installing.
Risk likelihood
Litmus is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this extension.
Upgrade to see risk analysis details
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