Compare: Litmus vs BrowserStack

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Metric	Litmus	BrowserStack
User count	4,000	100,000
Average rating	4.47	2.82
Rating count	40	102
Last updated	2025-07-23	2026-04-02
Size	5.55 MB	2.34 MB
Version	1.2.1	3.1.11

Short description	Personalize, preview, and optimize emails seamlessly with Litmus Extension—test emails anytime, anywhere during your build process.	Test your webpage instantly on any desktop or mobile browser using BrowserStack Quick Launch Extension. Streamline cross-browser testing effortlessly.
Full summary	Litmus Extension empowers marketers and developers to personalize, preview, troubleshoot, and optimize emails directly within their preferred email editors, whether local or within an Email Service Provider (ESP). This seamless integration saves time and elevates the accuracy and engagement of email campaigns by enabling thorough pre-send testing. While the extension is free to download, full access to its powerful testing and personalization features requires a paid Litmus account. Enhance your email workflows effortlessly by installing the Litmus Extension and experience optimized email creation without switching platforms. Learn more and get started at litmus.com/extension.	BrowserStack Quick Launch Extension simplifies cross-browser testing by allowing developers to instantly open their webpage on any desktop or mobile browser. With an easy-to-use interface, users can select from a wide range of device and browser combinations or set up to 12 favourites for quick access. This extension integrates directly with BrowserStack’s testing platform, enabling you to review changes immediately, test real user conditions, and file bugs efficiently. To get started, install the extension, open the webpage to test, and click the BrowserStack icon to choose your desired browser and device. Note that a BrowserStack account is required for use, which can be created easily through the extension or their website. This tool enhances development workflows by making cross-browser compatibility testing faster and more seamless.