Litmus Builder

The code editor built to streamline your email development workflow

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Build the perfect email

Build better emails faster with Litmus Builder, the web-based editor built specifically for email.

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Apple Mail 10
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Apple Mail 11
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Outlook 2011
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Outlook 2013
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Outlook 2016
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Windows 10 Mail

Preview your email as you code

Get previews of your email in popular email clients while you're building. Every change you make updates your previews in real time, so you can build, test, and troubleshoot your email campaigns faster than ever before.

Builder autocompletion

Increase productivity and reduce manual errors

Utilize reusable code snippets, autocompletion support for CSS and images, pre-tested templates, and connections with email service providers to speed production, reduce errors, and ensure brand consistency.

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Collaborate on email campaigns

Invite all stakeholders to collaborate on your campaign. Easily share your email with the click of a button, plus utilize timeline to keep track of every change and maintain code consistency across your team with a library of templates and reusable code snippets.

Grid view

Easily navigate your code

Navigate your code faster than ever before with grid view. Just click on any HTML element in the preview pane and land on that element directly within the code editor. Plus, with a simple hover you can view the dimensions of specific elements in your email.

Integrate Builder with your email service provider

Getting your email from your code editor into your email service provider (ESP) has always been a hassle. It’s time to say goodbye to that manual copy and paste process.

With ESP Syncing, you can automatically sync your code from Builder to your ESP with a click of a button. Once connected, whenever you make any changes to your code in Builder, it automatically updates in your ESP, too.


ESP Syncing is available for:

  • MailChimp
  • Campaign Monitor
  • Salesforce Marketing Cloud (formerly ExactTarget)
  • Eloqua
  • IBM Watson Campaign Automation (formerly Silverpop)
  • Marketo

Cut your development time in half

Built by email professionals for email professionals, Litmus Builder helps you streamline your email design and development workflow.

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CSS inlining

Inline your email’s CSS with a simple toggle and style your emails faster and easier than ever before.

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Snippets and partials

Avoid repeating yourself by creating reusable blocks of code that you can utilize across multiple campaigns.

Code analysis

Code Analysis

Identify HTML and CSS issues and troubleshoot your emails in specific email clients.

Subject line checker

Subject Line Checker

Preview your from name, subject line, and preview text in real time in over 15 popular email clients.

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HTML file display sizes

Get insights on both the compiled and original HTML file display size. Discover if you’re under Gmail’s 102KB display limit.

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Tracking Manager

Easily add tracking codes to links in your email. Simply input your tracking code, and select which links in the email you’d like to apply it to.

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Processed HTML support

See what each email client actually processed your email markup into, making it easier than ever to pinpoint and diagnose rendering issues.

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Sharing + sending test emails

Create a public version of your email to share with others—or send a test email directly from Builder.

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Timeline

View your entire email’s history. See who made changes and when, and easily restore any version at any time.

Announcement
Welcome
Birthday
Newsletter
Coupon Sale
Event Invitation

Builder for Designers

Cut your email development time in half.

Preview your emails as you code—and build, test, and troubleshoot your emails in record time.

Utilize quality email templates

Browse our gallery of pre-tested templates that look great and work everywhere.

Automate time-consuming tasks

Easily automate mundane email design tasks like CSS inlining or sending test emails.

Litmus for Designers
Builder split view

Builder for Marketers

Send emails that look great everywhere

Preview your email in popular apps and devices before you send, reduce errors, and maintain brand consistency

Utilize quality email templates

Browse our gallery of pre-tested templates that look great and work everywhere.

Easily track every campaign

Automatically add tracking codes to links in your emails, ensuring you can report on your campaign’s performance.

Litmus for Marketers

Builder for Agencies

Keep email marketing projects on track

Save project time and cost by having each of your design and development teams testing and iterating on real email clients, right in Litmus Builder.

Utilize quality email templates

Create consistent templates and branding across your team with a template library and code snippets that can be shared across your development teams.

Share projects internally

Use Builder’s built-in sharing features to share projects with your internal teams and your clients for review and feedback.

Litmus for Agencies