16 Best Email Previewing, Testing, & Rendering Tools
You know the expression, “What you see is what you get”?
Well, when it comes to email marketing campaigns, that might not always be the case.
In this post, we’ll discuss the best free and paid email testing, previewing, and rendering tools you can use to make sure your emails are ready for the eyes of your leads and customers.
What is an email previewer?
An email previewer is a tool that helps you preview your messages before sending them to your list. Previewing your messages ensures your emails are professional, error-free, easy to read, and ready for your leads and customers.
Why use an email previewer?
Since everyone uses different email providers such as Gmail, Outlook, or Yahoo, emails can appear differently for various subscribers.
Sometimes images are blocked, alt text is missing, or fonts won‘t render. If this happens, you could damage your credibility and lose subscribers. That’s why it’s essential to test your emails before you send them.
Now let’s take a moment to review HTML versus plain text emails and previews.
HTML Emails vs. Plain Text Emails
HTML emails code a document so that an HTML reader (e.g., a web browser) can read and render information — this allows a page to show multimedia, color, images, and more. Plain text emails don’t include any of the multimedia, colors, images, special fonts, etc. that you’d see in an HTML email — it’s just plain text.
No matter which email type you choose, you should preview your emails to make sure they’re ready for your audience.
This is especially important if you go with an HTML email since it inherently includes multimedia elements, colors, fonts, branded elements, images, and more.
HTML Email Preview
As your HTML emails become more sophisticated, it’s important to preview and test your emails before sending them to recipients. An HTML preview allows you to adjust anything necessary before the final version is sent to your audience.
That way, you can send your messages to the people who matter most — your customers — with complete confidence.
Best Email Preview Tools
HubSpot Email Marketing Tool
From HubSpot to GlockApps, here’s how to choose the right email previewer for your needs and budget. Aside from previewing emails, many suggested tools also include other email marketing features, like advanced testing.
Price: Ranges from $9.99 a month for 1–1,000 subscribers to $189.99 a month for 30,001–35,000 subscribers.
SendX is an email marketing software for experienced email marketers. There’s only one plan (Business Plan), and the price varies based on your volume of subscribers. The Business Plan includes all software features and unlimited emails per month.
SendX caters to “unfairly banned” niches, including “cryptocurrency” and “afﬁliate marketing.”
Their product offers a heatmap report featuring an overview of call-to-action (CTA) success across campaigns. You can use the feature to see which visuals inspire readers to take action.
With HubSpot’s Email Marketing Tools, you can create, personalize, and optimize your marketing emails without the need for any code or help from designers.
Since this tool is part of the HubSpot CRM platform, you‘ll know the data you’re using to customize your emails is accurate. For instance, personalize emails by referring to the recipient’s lifecycle stage or membership status — then schedule your campaign so your customized emails are sent automatically.
Pre-made, customizable email templates and the tool’s drag-and-drop editor allow you to quickly create beautiful emails to your recipient list.
Lastly, A/B test different elements of your emails — such as subject lines or the time that you send your emails — to determine what works best for your audience.
MailNinja is a free, easy-to-use, uncluttered email preview tool. With this tool, you can see instant previews of your HTML emails. Additionally, you can double-check your alt text, send test emails, and see how your email will look on different devices.
This is a simple, free option if you don’t trust or want to use a different preview tool than your email marketing software.
PutsMail is a free email testing tool by Litmus. Plus, PutsMail lets you see how your email will look across 50+ platforms and devices. This is a great tool if you’re just looking for a quick and easy way to preview your emails.
Price: $19 monthly for email marketing; $59 monthly for marketing automation; $119 monthly for ecommerce marketing
Get Response is an email marketing software that can help you create content, boost sales, and increase traffic to your site. Preview your emails in over 25 popular email clients, and determine if and when multimedia elements like images are blocked.
Price: $99 monthly for Litmus Basic; $199 monthly for Litmus Plus
Litmus is a tool for testing and developing email campaigns. With a paid account, you’ll gain access to an email preview testing tool that allows you to see screenshots of your emails across 90+ different apps and devices.
Litmus allows you to personalize messages at scale. It’s suitable for established companies with large email lists. Every paid plan comes with email previewing and offers unlimited read-only users. There’s a range of templates that are easy to implement.
Better yet, if you have a Litmus account, you can add a Chrome extension to your browser and test your emails without ever leaving your email service provider.
With the extension, you can validate your links, images, and tracking. Plus, the extension will instantly run a new checklist with every edit.
Price: $15 monthly for a basic plan; $45 monthly for a medium plan; $95 monthly for a pro plan
Stripo is an intuitive email builder with email testing and a variety of available email service provider (ESP) integrations (including HubSpot, Gmail, Outlook, and Mailchimp). There’s a library of custom modules, so you can use them across various campaigns.
All of the emails you design with Stripo’s HTML editor are responsive, so you’ll never have to worry about how they render for recipients across different devices. Additionally, after building dynamic AMP emails with Stripo, the tool’s code validator checks the email for errors for you.
Stripo will be releasing a “Real-time co-editing & commenting” feature for the Medium and above plans in the future. Stripo works for in-house marketers — there’s also a use case for HR managers who send out internal newsletters.