Litmus
Litmus helps marketing teams build, personalize, and test emails before they go out.
Updated April 2026

Overview: What is Litmus?
It previews campaigns across more than 100 email clients to catch rendering issues early. The platform also monitors deliverability and tracks engagement analytics.
Litmus is an email marketing platform focused on campaign quality assurance and optimization. Teams use it to build on-brand emails with a no-code editor and personalize content for different audience segments. The tool renders previews across over 100 email clients so broken layouts and formatting errors get caught before sending. Built-in spam testing checks whether messages are likely to land in junk folders. Review cycles shrink because stakeholders can approve campaigns inside a single workspace. Litmus connects with major email service providers and fits alongside existing CRM and marketing stacks.
Fit: Ideal customer profile.
Marketing teams at startups through enterprise companies that need to produce personalized, error-free email campaigns and ensure reliable inbox delivery.
- SMB
- Mid-market
- Enterprise
Capabilities
Key features.
01
No-code email builder for on-brand campaigns
02
Dynamic personalization for audience segments
03
Previews across 100+ email clients and devices
04
Automated QA checks for broken content
05
Spam and deliverability testing before send
06
Real-time alerts for email rendering issues
07
Stakeholder approval workflows in one hub
08
Campaign performance and engagement analytics
09
Integrations with major email service providers
10
Deliverability add-on with inbox placement monitoring
Usage
How to use Litmus.
Connect Litmus to your email service provider, then build or import your campaign into the editor. Run previews across target email clients and devices to spot rendering problems. Use the spam test to verify inbox placement, share the campaign with stakeholders for approval, and push the final version back to your ESP for delivery.
Cost
Pricing.
$500/ Per seat
The Core plan starts at $500 per month for a team of five users. A seven-day free trial is available, and Enterprise pricing is custom.
Litmus Core
$500.00
- 5 full users
- 2,000 previews/month
- 500,000 analytics/month
- 50,000 personalize/month
- Automated QA checks
- ESP integrations
Litmus Enterprise
$Custom
- Custom users
- Custom previews
- Custom analytics
- All Core features
- Collaboration hub
- Advanced security
Deliverability add-on
$Custom
- Inbox placement
- 24/7 monitoring
- Competitor insights
- Engagement analytics
- Data feeds
- SPF/DKIM/DMARC tracking
At a glance
Quick facts.
- Stack position
- Deliverability
- Category
- Sales Tools
- Best for
- SMB, Mid-market, Enterprise
- Pricing
- From $500/Per seat
Subcategories
- Email Spam Tester
Questions
Frequently asked.
How do you use Litmus?
You build or import emails, personalize content, then run previews and spam checks before sending. The platform consolidates review and approval steps so campaigns ship with fewer errors.
What does Litmus cost?
The Core plan is $500 per month and covers five users with 2,000 previews. Enterprise tiers and a deliverability add-on are priced based on requirements.
Why should teams choose Litmus?
It provides accurate rendering previews across a wide range of email clients and devices. Teams also gain spam testing, real-time alerts, and analytics in a single workflow.
How does Litmus work under the hood?
The tool pulls your email into a sandbox where it generates live previews across target clients and flags layout or formatting issues. It also runs spam diagnostics and tracks engagement after send.
Does Litmus offer a free plan?
There is no permanent free plan, but a seven-day trial is available. Paid plans start at $500 per month for the Core tier.
Which platforms does Litmus integrate with?
Litmus connects with major email service providers such as Mailchimp, Klaviyo, and Campaign Monitor. It also supports various code editors and third-party marketing tools.
Compare
Litmus alternatives.
Talk to us: Pick the tool. We run the system around it.
Litmus is one part of a stack. We build and run the revenue system it plugs into.
Talk to Phi