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Litmus Email Marketing Software logo
Litmus
Optimize Email Campaigns Instantly
4.6

( 382 )

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Litmus Reviews: 4.6/5 — Highly Rated

Litmus Overview
What is Litmus?

Litmus is a preferred email personalization, optimization, and collaboration software among marketers designed to maximize your ROI. From pre-send campaign development, testing, and AI-driven content recommendations Litmus can deliver the tools you need and help facilitate better creativity to ensure optimized content.

Company Litmus Software, Inc.
Year founded 2005
Company size 51-200 employees
Headquarters Cambridge, Massachusetts, United States
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What Litmus is best for?
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Litmus Product Details
Capabilities
API
Segment
Small Business
Mid Market
Enterprise
Deployment Cloud / SaaS / Web-Based
Support 24/7 (Live rep), Chat, Email/Help Desk, FAQs/Forum, Knowledge Base, Phone Support
Training Documentation
Languages English
Litmus Features
A/B Testing
A/B testing / Experiments
Analytics/Reporting
API Access
Automated Responses
Bounce Management
Branding removal (white-label)
Campaign Scheduling
Contact List Import/Export
Custom domain for landing pages/forms
Custom Fields
Customizable Templates
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Our research is curated from diverse authoritative sources and meant to offer general advice. We don’t guarantee that our suggestions will work best for each use-case, so consider your unique needs when choosing products and services. Feel free to share your feedback.
Last updated: September 04, 2026
Litmus Email Marketing Software logo
382 Litmus Reviews
4.6 out of 5
Small Business (50 or fewer emp.)
Oct 12, 2021
 Source
Overall Rating:
5.0
Angela J. avatar
Angela J.
Email Services Specialist
Share
"Awesome company"
What do you like best about Litmus?

They have such valuable and fun newsletters to read and webinars that they put on. The customer service is stellar. They get back to you quickly. I'm always discovering new tools that they come out with.

What do you dislike about Litmus?

It seems like when I zoom into the previews, they come up in a different order than they are in the smaller view and then I kind of lose my place.

What problems is Litmus solving and how is that benefiting you?

I mostly use it to resolve rendering issues which Litmus is fantastic for. They also provide so many helpful tools and tips just generally about email.

Small Business (50 or fewer emp.)
Oct 12, 2021
 Source
Overall Rating:
5.0
MH
Mark H.
M
Share
"Flexible Email Updating & Testing Tool"
What do you like best about Litmus?

Litmus can show how your email will render across countless email clients. Renderings can be so different and finicky across email providers that this is a marketers dream. No more making two dozen fake email accounts to see how emails will look...

What do you dislike about Litmus?

It's great for basic editing and html updates but there is no WYSIWYG editor for building emails from scratch.

What problems is Litmus solving and how is that benefiting you?

Being able to test across multiple email clients at once is worth it's weight in gold. Html edits are also easier because it let's us highlight regions we need to update.

Mid Market (51-1000 emp.)
Oct 12, 2021
 Source
Overall Rating:
5.0
Holly E. avatar
Holly E.
Server
Share
"Litmus is so user-friendly and has great customer service!"
What do you like best about Litmus?

I love how I can add a client to Litmus, share an email with them, and I don't even have to walk them through it. It's so easy to use and is excellent for multiple clients.

What do you dislike about Litmus?

I haven't found anything I don't like about Litmus.

What problems is Litmus solving and how is that benefiting you?

Email proofing, it is easy to add clients to single emails or folders, depending on creating one or several emails. I love how specific you can make the edits as well. Most proofing systems are not this simple to use.

Small Business (50 or fewer emp.)
Oct 12, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Great product for email marketers"
What do you like best about Litmus?

I like that I can easily view how responsive an email is and what it looks like in different clients.

What do you dislike about Litmus?

I've never found a good way to auto-format my line breaks.

What problems is Litmus solving and how is that benefiting you?

Litmus has helped our business ensure that our emails look good no matter what device they are viewed from. It has also helped us optimize our emails for dark mode. It's also helped us create templates and snippets that we can reuse easily for multiple different emails.

Small Business (50 or fewer emp.)
Aug 11, 2021
 Source
Overall Rating:
5.0
HA
Hasin A.
Designer
Share
"The QA tool for email developers in the market."
What do you like best about Litmus?

The browser and devices options available for testing.

What do you dislike about Litmus?

The interface is slightly difficult to navigate with all the options.

What problems is Litmus solving and how is that benefiting you?

Delivering better emails to users and reducing errors.

Small Business (50 or fewer emp.)
Aug 06, 2021
 Source
Overall Rating:
5.0
DR
Derek R.
Senior Crm Manager
Share
"A tool to help give visibility without breaking the bank"
What do you like best about Litmus?

The ability to easily pass email proofs for review over. The high res images that are created of the proofs has been really helpful to pass along.

What do you dislike about Litmus?

The insights could be a little more helpful. It would be great to be more explicit when your email may be falling into a spam trap.

What problems is Litmus solving and how is that benefiting you?

Email proofs - updating templates, submitting proofs for review internally for approval.

Small Business (50 or fewer emp.)
Jul 28, 2021
 Source
Overall Rating:
5.0
SS
Stacey S.
Marketing Manager
Share
"Litmus is time saver"
What do you like best about Litmus?

Litmus saves lots of time for us, is simple to use, and we can check different email clients, Easy integration.

What do you dislike about Litmus?

Nothing that we feel is not up to the mark.

What problems is Litmus solving and how is that benefiting you?

We check for several email clients. Also ensure our emails go through without any restriction.

Small Business (50 or fewer emp.)
Jul 21, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Litmus is very easy to use and checks against all possible email clients so you save time too"
What do you like best about Litmus?

Litmus is very easy to use and checks against all possible email clients so you save time by not having to go to each one individually. I also like that it integrates with SalesForce so I can do the checks directly there instead of having to toggle between the two platforms.

What do you dislike about Litmus?

Nothing that I can think of at the moment

What problems is Litmus solving and how is that benefiting you?

Making sure our emails work across all email clients and views for consistency.

Mid Market (51-1000 emp.)
Jul 21, 2021
 Source
Overall Rating:
5.0
Nick W. avatar
Nick W.
Manager, Cloud Platform Marketing
Share
"Ensure Visibility Everywhere!"
What do you like best about Litmus?

The ability to quickly scroll through all browsers and devices and look at your email to make sure it's displaying properly.

What do you dislike about Litmus?

Nothing really. I think Litmus' platform does exactly what we're paying for.

What problems is Litmus solving and how is that benefiting you?

- The ability to view my email in multiple browsers and devices that I don't have access to - Saves large amounts of time by loading all previews at once

Small Business (50 or fewer emp.)
Jul 20, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Great tool to review for all different email clients"
What do you like best about Litmus?

I can keep using the same share URL and send multiple new tests to that URL instead of constantly making a new one for each new test for the same email.

What do you dislike about Litmus?

Sometimes I can't see certain email clients because they don't load properly, and I have to resend the email.

What problems is Litmus solving and how is that benefiting you?

The ability to test emails to make sure they're all consistent before they get sent to the client.

Mid Market (51-1000 emp.)
Jul 20, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Amazing tool and simple to use"
What do you like best about Litmus?

Editing your emails live. Being able to see how your code effects your email is a wonderful tool

What do you dislike about Litmus?

So far I've had nothing but a great experience

What problems is Litmus solving and how is that benefiting you?

Ensuring that the emails are rendering properly across all platforms

Small Business (50 or fewer emp.)
Jul 20, 2021
 Source
Overall Rating:
5.0
EB
Edwin B.
Senior Manager, Marketing Automation
Share
"Best In Class"
What do you like best about Litmus?

Litmus is the most straightforward and user-friendly email testing service I have used. The ability to pick and choose which email clients and browsers you want to see is beneficial, and Litmus is constantly staying on top of developing email trends and features.

What do you dislike about Litmus?

Maybe it's user error, but my team and I still haven't found a good workflow for testing and reviewing emails sent to Litmus. That would be a gamechanger for us - the ability to provide feedback at different levels and consider the diverse backgrounds and skillsets of everyone on our team (from copywriter to developer, etc.).

What problems is Litmus solving and how is that benefiting you?

The biggest problem we've recently solved using Litmus was in our transition of email marketing systems. We've used Litmus and ensured our emails rendered precisely how we wanted at every step - from IP Warming to running our day-to-day campaigns. Now that we've been using our new platform, we're thinking ahead to refining and coding better designs for things dark mode and the various devices our subscribers use most often.

Mid Market (51-1000 emp.)
May 20, 2021
 Source
Overall Rating:
5.0
Jason M. avatar
Jason M.
E Crm Manager
Share
"Build, test and even create a workflow"
What do you like best about Litmus?

Litmus provides an easy way to build great emails quickly and, for me, one of the best features is the ability to share a link to proof your creations that can be shared - the coolest thing is that you control what they can see. You select the inboxes you want to show and the mobile devices to use. The approver sees what they need to.

What do you dislike about Litmus?

The folder tree is a bit tricky. Sometimes when you have lots of folders, you can't scroll down to lower folders, so you need to get inventive about how you get there. It's not a huge inconvenience, but it can be frustrating if you're in a hurry

What problems is Litmus solving and how is that benefiting you?

Inbox previews are the biggest win for me. Litmus has a ton of features now, but its core purpose of proofing is what keeps me coming back. I use it as a standalone product (where I log in to the Litmus platform) and as an integrated part of Marketing Cloud; it's pretty versatile.

Enterprise (> 1000 emp.)
May 18, 2021
 Source
Overall Rating:
5.0
Juliana A. avatar
Juliana A.
Email Designer & Developer
Share
"Best testing tool ever"
What do you like best about Litmus?

How close to the email community the Litmus team is. That makes a big difference when implementing new features

What do you dislike about Litmus?

The platform is always changing and sometimes I don't even know where to find my things. I would recommend sharing a timeline of the new features so we can be aware of when the changes will come.

What problems is Litmus solving and how is that benefiting you?

Masking sure all my email templates are rendering as they should. As a repo for my development team to build things and share links with the MKT stakeholder for approval

Small Business (50 or fewer emp.)
May 13, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Great tool"
What do you like best about Litmus?

Ease of use and excellent customer service.

What do you dislike about Litmus?

The pricing is not too flexible for a small agency, the usage is not contant so the needs vary

What problems is Litmus solving and how is that benefiting you?

formatting issues with specific email clients, such as Microsoft

Enterprise (> 1000 emp.)
May 12, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Wouldn't have survived in the email marketing world without it"
What do you like best about Litmus?

The most significant upside of using Litmus is the possibility to test the emails in a lot of different email clients. I recently noticed that Litmus has come with a drag and drop builder, too (might have existed for a while?), and that will be super helpful for the team I'm on where I'm the only one who knows how to code.

What do you dislike about Litmus?

The biggest downside of Litmus, as far as I can see, is that it is made mainly for developers. If the Litmus builder had been as easy to use as the Mailchimp builder, it would've empowered many people to create a lot of beautiful emails. But now, it seems like we need someone to code up modules and templates first. If that is not the case, I haven't found out how.

What problems is Litmus solving and how is that benefiting you?

I'm not ending up sending out emails that look terrible for a vast majority of our subscribers, that's for sure!

Enterprise (> 1000 emp.)
May 11, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Brilliant tool for any email marketer"
What do you like best about Litmus?

We work with a wide array of stakeholders, from Gen Z through to X - including professionals and general consumers. The previews and QAs ensure our HTML from Salesforce Marketing Cloud is rendering well across many use cases. Moreover, sending tests directly to the builder and tag team members allows us to proofread and approve content blocks effortlessly. I have already recommended to industry peers who've experienced similar benefits. It's an end-to-end solution, too, meaning I can set up tracking and analysis to augment and tweak future campaigns. In short: Love the builder, previews, QAs, and analytics. Love Litmus.

What do you dislike about Litmus?

Nothing for me. Brilliant for teams and collab. I would like a bit more functionality in the folder structuring and filing, particularly as we move further down the line in involvement, but that's just me being picky with housekeeping.

What problems is Litmus solving and how is that benefiting you?

I'll list them, for ease of reading: - proofreading - device testing - metrics/analytics and ROI rationale - team collaboration and SLT approval - historical reviewing and content archiving Honestly, any marketer performing direct comms to end users - needs Litmus in their lives. There isn't a better solution out there for testing pure HTML through email clients, testing and reviewing sends as a team, and seeing the ROI and effectiveness of what you're doing. The best ESP management tool I've used in my career.

Mid Market (51-1000 emp.)
May 11, 2021
 Source
Overall Rating:
5.0
KO
Kim O.
Marketing Operations Manager
Share
"Great email review tool!"
What do you like best about Litmus?

I really enjoy working In Litmus. The product is easy to use and had a great user experience. It's very useful for coding HTML for emails and previewing your email experience on multiple email clients. It is the best email testing platform on the market. Not only does Litmus generate screenshots for all major email clients, they are quick to update when things change or new features become available for certain clients (e.g. Dark Mode). from testing all major platforms, Litmus. Litmus comes with many options to improve your email marketing and improve productivity. Their visual editor is great and helps with writing efficient emails with drag and drop feature. Their insights also help you do in depth analysis of campaigns. Integration with other apps and services is another great feature as it saves time to switch between apps and finish efficiently. This is the second company I have worked at where I advocated to incorporate Litmus into their email process. It seamlessly integrates with Salesforce Marketing Cloud and makes collaborating with multiple teams and the UAT process a dream. The browser previews of devices and additional analytics are the key features I leverage for every email. It is the surest way to double check your email will render beautifully for your subscribers.

What do you dislike about Litmus?

Nothing really. Minor thing - not seeing folders on the main window.

What problems is Litmus solving and how is that benefiting you?

Building emails, Troubleshooting in different email clients, analytics that my ESP cannot provide.

Mid Market (51-1000 emp.)
May 05, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"QA is a breeze with Litmus"
What do you like best about Litmus?

Robust and very thorough QA and testing features.

What do you dislike about Litmus?

There are so many features, at first, it can be a little tricky to navigate the interface and get around.

What problems is Litmus solving and how is that benefiting you?

Making sure emails are consistently error-free and user-friendly.

Enterprise (> 1000 emp.)
Apr 27, 2021
 Source
Overall Rating:
5.0
SK
Shannah K.
Marketing Operations Manager
Share
"All encompassing render software"
What do you like best about Litmus?

I love that Litmus has so many devices to render from.

What do you dislike about Litmus?

Sometimes it takes a few weeks for new OS systems to be available.

What problems is Litmus solving and how is that benefiting you?

Render QA testing for our email campaigns

Mid Market (51-1000 emp.)
Feb 25, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"User friendly!"
What do you like best about Litmus?

It is super easy for me to upload emails

What do you dislike about Litmus?

I dislike that you have to name your email twice

What problems is Litmus solving and how is that benefiting you?

We have better email insight with the analytics section provided.

Small Business (50 or fewer emp.)
Feb 25, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Maximizing Email Efficiency"
What do you like best about Litmus?

Love being able to send samples of the emails to our approvers where they can make comments and see both desktop and mobile versions. This has really improved the efficiency of our timeline and shortened timelines.

What do you dislike about Litmus?

I dislike that some integrations to marketing automation platforms are included in the mid-tier but others are only offered in the higher tiers.

What problems is Litmus solving and how is that benefiting you?

We have solved the problem of our review process. We used to send samples to our marketers that they would print, hand-write changes, and then give back to us. We would then have to send another sample once we made the update. It was much more time consuming and cumbersome than how we are able to do it with online reviews and comments in litmus.

Enterprise (> 1000 emp.)
Feb 24, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"#1 Tool for Developing Emails"
What do you like best about Litmus?

This is the second company I have worked at where I advocated to incorporate Litmus into their email process. It seamlessly integrates with Salesforce Marketing Cloud and makes collaborating with multiple teams and the UAT process a dream. The browser previews of devices and additional analytics are the key features I leverage for every email. It is the surest way to double check your email will render beautifully for your subscribers.

What do you dislike about Litmus?

One minor update I would like to see is when you are updating your email to a new version the only way to sync after the first version is through an email send. While this is easy with SFMC preview send, it be nice to just resync directly from Marketing Cloud. Other than that I would just like to see more from the platform! I want all my email accessories in one place like GIF makers, Countdowns, and more! For now they are outstanding in updating the current tools they have such as their code builder.

What problems is Litmus solving and how is that benefiting you?

Litmus became a very important asset when it came to collaborating with multiple team members to review and approve emails. Instead of having separate chats and multiple email threads all the comments and approvals are in one place for everyone to see. This helped streamline our review process almost instantly and it's so user friendly it hardly took any training.

Small Business (50 or fewer emp.)
Feb 23, 2021
 Source
Overall Rating:
5.0
Robert D. avatar
Robert D.
Email Marketing Specialist
Share
"The best email testing platform out there, and then some."
What do you like best about Litmus?

It is the best email testing platform on the market. Not only does Litmus generate screenshots for all major email clients, they are quick to update when things change or new features become available for certain clients (e.g. Dark Mode). from testing all major platforms, Litmus

What do you dislike about Litmus?

It is so feature rich that it can take some time to figure out the right workflow for your process.

What problems is Litmus solving and how is that benefiting you?

Litmus eliminates the need for manual quality assurance on email campaigns and has improved our review/approval process with its built in tools and shareable tests.

Mid Market (51-1000 emp.)
Oct 29, 2020
 Source
Overall Rating:
5.0
Jake C. avatar
Jake C.
Lifecycle Marketing Manager
Share
"Litmus makes my job 10x easier!"
What do you like best about Litmus?

I absolutely LOVE the HTML editor. It is miles above anything else on the market and allows me to quickly design new templates with minimal code adjustments and optimize them for all email clients.

What do you dislike about Litmus?

Would love to have faster email client previews (or live changes in previews), better Salesforce Marketing Cloud Integration, support for AMPscript, and more information in spam tests.

What problems is Litmus solving and how is that benefiting you?

Our emails were terrible before Litmus, specifically in Outlook. Now our emails are flawless!

Mid Market (51-1000 emp.)
Feb 27, 2020
 Source
Overall Rating:
5.0
Eric M. avatar
Eric M.
In House Lead Creative
Share
"Litmus has created the bar by which all email should be measured. They continue to raise it daily!"
What do you like best about Litmus?

Everything! Litmus is the Go-to, State of the Art platform that anyone who is even remotely related to sending out bulk HTML/CSS based email should use. The metrics are great, the testing abilities are great. I couldn't possibly ask for more.

What do you dislike about Litmus?

None that I can think of. Apparently I need some characters here to make this accept my answer.

What problems is Litmus solving and how is that benefiting you?

Making sure emails are device/platform/operating system compliant, seeing which devices/platforms/OSs are most used. Seeing the regional breakdown. We use an EMS that isn't terribly sophisticated in metrics, so the benefits of using Litmus in tandem is really impressive.

Small Business (50 or fewer emp.)
Feb 27, 2020
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Best Email Testing Tool by far"
What do you like best about Litmus?

Creating multiple versions of emails easily and then testing them while I create more! It allows me to test the emails and know they work before my team will test them themselves. The interface is super user friendly. I like the functionality to be able to select which email clients I want to view

What do you dislike about Litmus?

No sorting option to organise my tests by date or name

What problems is Litmus solving and how is that benefiting you?

Testing my emails before they go to be tested by the marketing teams

Small Business (50 or fewer emp.)
Feb 17, 2020
 Source
Overall Rating:
5.0
Ryan S. avatar
Ryan S.
Motion Graphic Specialist
Share
"A Great Email Tool"
What do you like best about Litmus?

Being able to see how an email will render across various platforms and all the analytics that are available. I love how many different platforms you can view your email on (both new and old) to make sure everything is coming across as it should.

What do you dislike about Litmus?

Not having our ESP listed in the available options for analytics. As a result, our tracking data is often incomplete or some stats aren't available.

What problems is Litmus solving and how is that benefiting you?

We are able to see how our new email layouts and templates will render across all the various platforms out there. As a result, we are able to better design emails and content.

Enterprise (> 1000 emp.)
Feb 11, 2020
 Source
Overall Rating:
5.0
Josh P. avatar
Josh P.
Digital Developer, Email
Share
"Litmus is my friend."
What do you like best about Litmus?

Litmus, at every angle and opportunity has felt to me like interacting with a good friend or colleague with whom you have unprecedented rapport.

What do you dislike about Litmus?

Surprisingly nothing. I whine alot about business practices and how people have forgotten the nature of win-win business models. Litmus is in it to win it though, not just extract whatever they can from you. They are focused on delivering the highest quality UX and developing their relationship with you. Their data collection and marketing practices are industry best and demonstrate their rare, but much welcomed integrity. Just like a breath of deep, fresh forest air. My testing process used to be completely manual while developing cross-browser, cross-client, multi-lingual (70+), mobile-first PWAs for a very, very big company 3M. You can probably imagine how much of a miracle adding Litmus to my UI/UX armory felt. It was like Goku going Super Saiyan for the first time, or that time Fatal1ty looked directly at me (sitting next to me) at CPL and said, "damn bro, you're good at this game." Pure bliss.

What problems is Litmus solving and how is that benefiting you?

Dissolving world hunger. Achieving world peace. Enabling space colonization while protecting the planet at the same time. Saving the Romulans from their own self destruction. Oh, and maximizing results in our Email Marketing Team.

Mid Market (51-1000 emp.)
Feb 11, 2020
 Source
Overall Rating:
5.0
Sally G. avatar
Sally G.
Marketing Automation Strategist
Share
"Industry leader in email compatibility and community involvement"
What do you like best about Litmus?

The app itself is a user-friendly tool to help manage your email testing processes, with all the major email browsers available for testing. The new version is much more cohesive, fully integrating the build, proofing, and testing processes. The implementation of email templates is very flexible, and integration with all major email systems is a godsend. the functionality that allows you to resend an email for a follow-up test is very simple, and it's great that you can "stack" multiple versions of the dame email for retesting. They are very quick to add new email clients, and integration with putsmail.com is very useful. In addition to that, they are community leaders, providing an excellent resource for email designers and developers, from their discussion pages to their blog, to their annual global email design conferences.

What do you dislike about Litmus?

The analytics could be more in depth, and it would be useful to auto-file test emails based on rules - or even users - so that it's not one big list to manage. However these are small points relative to the utility it provides. The clever retest functionality unfortunately ends up filling my email system with many one-off email addresses, which I have to periodically remove. It's irritating, but not the end of the world. The most recent conference was much more top level than I had come to expect, being best suited to marketers and non-technical people, which was disappointing. However, I fed this back to the team and they were very responsive. I look forward to seeing the agenda for 2020.

What problems is Litmus solving and how is that benefiting you?

Litmus is a required part of our email send process, and has greatly improved the quality of emails being sent by non-technical members of the marketing team. It has enabled a broader set of people to manage their own email testing process. We are currently working on developing a new "modular" email template for use by the marketing team using the built in templating capabilities which are much more flexible than other systems available to us.