Litmus is web-based software designed to help teams test, track, and optimize their email campaigns. It offers a comprehensive suite of tools to help businesses create, send, and analyze their email campaigns. With Litmus, users can preview their emails in over 90 different email clients, test their emails for spam, and track their campaigns with detailed analytics. Litmus also provides users with access to a library of templates and design tools, so they can create emails that look professional and consistent across different devices. With Litmus, users can ensure that their campaigns are sent out quickly and efficiently, with the highest possible level of deliverability. Whether you’re a marketing team or a business owner, Litmus can help you maximize the impact of your email campaigns.