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Take the guesswork out of email marketing
Litmus is an email marketing and testing platform for B2B marketing teams that build review and optimize campaigns. It stands out for inbox previews automated QA checks and ESP integrations that reduce send-time errors improve workflow efficiency and accelerate approvals with shared collaboration tools daily
Litmus is an email marketing testing and optimization platform for lifecycle marketers, demand generation teams, and CRM operators who manage high-volume B2B campaigns. Litmus lets teams build emails, preview rendering across major inbox clients and devices, run automated QA checks, validate links and tracking, and collaborate through comments, approvals, and version control. Litmus also provides engagement analytics such as read time, device and client usage, plus integrations with major email service providers and marketing automation systems to support existing workflows. Teams use Litmus to catch rendering issues before launch, shorten review cycles between marketing and stakeholders, and improve campaign performance through subject line, content, and audience insights. It is commonly used for production governance when multiple teams touch the same email program and consistency matters across regions or brands. In the martech stack, Litmus owns the pre-send quality assurance and post-send insight layer that complements ESPs, CRMs, and broader campaign automation systems.
Litmus fits lifecycle marketers, demand generation teams, and email developers at B2B SaaS, ecommerce, agencies, and enterprise brands running frequent campaigns. It serves teams managing approvals, personalization, deliverability, and analytics who need governed, high-volume email workflows across multiple stakeholders, regions, or brands.
What's included
What's included

All you need to cold email in one place: domains and emails, warm-up, free verification, lead finder and email sequencer

AI-native Outbound OS for Sales Teams and GTM Engineers

Data-driven marketing without the complexity

The prospecting tool to automate multichannel outreach & actually get replies

Turn Every Email Interaction into a Lifetime Customer

Instantly connects you to 450M+ leads and automates outreach for 700K+ businesses worldwide.

The smartest, easiest to use marketing automation platform

Where go-to-market teams go to retain

Enrich Salesforce from anywhere you work.
Litmus previews emails across more than 100 email clients and devices before launch. Teams use Litmus to check rendering differences in Outlook, Gmail, mobile inboxes, and dark mode environments so campaigns match intended design.
Litmus is built for lifecycle marketers, demand generation teams, email developers, agencies, and CRM operators. Litmus fits organizations that send frequent campaigns, manage multiple approvers, or need consistent brand standards across large email workflows.
Litmus runs automated QA checks for links, images, code issues, and common email errors before deployment. Litmus also supports customizable testing profiles so teams can standardize review workflows for different brands, regions, or campaign types.
Litmus includes visual, drag-and-drop, and code-based email building options. Litmus also connects with code editors so developers can test emails where they build, then move into approval and production workflows.
Litmus centralizes reviews, comments, folders, and approvals in one workspace. Litmus helps marketers, designers, legal reviewers, and stakeholders work from a single version instead of passing files through email threads.
Litmus includes dynamic personalization elements such as countdown timers, personalized images, progress bars, polls, scratch-offs, and rule-based images. Litmus uses these modules to increase engagement without rebuilding templates for every campaign.
Litmus integrates with major email service providers and marketing platforms including HubSpot, Marketo, Salesforce Marketing Cloud, Pardot, Mailchimp, and Klaviyo. Litmus fits existing CRM and campaign workflows rather than replacing sending platforms.
Litmus provides post-send analytics such as read time, engagement trends, device usage, platform data, and mailbox provider insights. Litmus gives teams reporting beyond standard ESP dashboards for optimization and audience behavior analysis.
Litmus offers inbox placement insights, sender reputation monitoring, and SPF, DKIM, and DMARC tracking through its deliverability tools. Litmus also supports alerts and dashboards so teams can react quickly to reputation issues.
Litmus offers unlimited seats and usage on its enterprise plan, plus subaccounts, permissions, and single sign-on controls. Litmus supports distributed teams that need governance, shared assets, and controlled access across multiple business units.
We help B2B teams build predictable pipeline, optimize their tech stack, and scale revenue. Whether it's growth or product, let's talk.