Achieve dramatic increases in productivity throughout the entire email creative process. Build and test on the email clients that matter most to your audience, and utilize reusable HTML and CSS code snippets and pre-tested templates to reduce errors and maintain brand consistency.
Never send another broken email. Identify critical elements that affect email performance, like campaign load time and incorrect links; create customized checklists; and utilize insights from 10+ years of best practices to save hours on QA.
Don’t waste time creating campaigns that your subscribers never see. Quickly identify any potential issues preventing your email from being delivered and utilize actionable suggestions to make it to the inbox.
Start sending personalized emails at the right time to the right device. Get aggregate and individual-level recipient data, geolocation, and device open insights to improve segmentation and optimization efforts.
Scalable solutions built to meet the ever-changing needs of marketing teams
500,000+Emails tested every month
1.3 billion+Email opens tracked every month
250+Email Service Provider partners
Here’s what our customers have to say
Join thousands of the world’s leading organizations and start making better email today.
Litmus gives us the ability to use email meta-data for deeper insights on behavior and enables Samsung to do a targeted follow up, directly. Litmus provides us next-level metadata on email.
Coen Van der Ven
CRM Specialist at Samsung
Litmus continues to be an invaluable resource, meeting our expedient and accurate demands within email development.
Technical Product Manager, Push Marketing at Groupon
Litmus gives us great insight into how our emails render across so many different clients, which has broadened our visibility and reduced our QA testing time in the ever-changing landscape of email clients. Plus it delivers analytics that help us guide any troubleshooting efforts. It is necessary for a top-tier marketer.
Sr. Manager Email Marketing at Zillow
Litmus has allowed us to swiftly launch campaigns with ease to our international customers, knowing that our emails are optimized and will render correctly in their various email clients.
Email Designer & Developer at Lenovo
Litmus has been very valuable to us as we monitor and react to our email subscribers' rapid adoption of mobile devices to engage with our newsletters and offers.
Manager, Email & Alternative Marketing at National Geographic
Optimizing emails for mobile is crucial to digital marketing. With our business, we rely on email correspondence to engage with our customers on a daily basis. Litmus Builder provides us with reliable real-time testing results to ensure our customers will have the best possible mobile experience.
UX Designer II at Santander Consumer USA, Inc.
We use Litmus to code, build, test and experiment with our designs while viewing in multiple clients. It helped us greatly to see what works and what doesn't while maintaining brand consistency. I love how we can tweak the code and it will update the designs across the clients while we test.
Email Marketing Producer of Digital Marketing at Girl Scouts
Litmus testing features help us deliver a wonderful subscriber experience to Angie's List members, and partnering with Litmus puts us at the forefront of email strategy and design.
Email Marketing Specialist at Angie’s List
Litmus paid for itself on the first send. Litmus is an essential tool in our email arsenal and it helped us fix email rendering issues within the first 30 minutes of use. The mysteries of HTML email has been solved with Litmus.
Sr. Manager of Digital & Social at Stonyfield Farm, Inc.
We use Litmus because it's important to us to make sure all of our subscribers receive great looking emails. Just because I don't know anyone that is using Outlook 2000 on Windows XP, chances are, one of our readers probably uses it. And we want them to have a great looking email, too. If you want your emails to be perfect, you need Litmus.
Front End Web Developer at charity:water
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