Email Device Preview & AI Summary Tool

Preview emails across 110+ devices as you build in your ESP.

Email Device Preview & AI Summary Tool Ever wonder how your marketing email will look in every inbox, on every device before you press send? Or how AI previews and summaries change your email content? Install Inbox Monster’s email rendering Chrome browser extension to generate 110+ powerful mobile, browser and desktop previews. Email marketers can seamlessly check their email rendering as they build within their ESP design tool, checking their email appearance as they create messages. Don’t send your next campaign until every email is pixel perfect. Check for HTML rendering issues, accessibility shortcomings, dark mode fails and responsive design–before you lose valuable revenue on your next email campaign. Your browser extension includes: - Device settings that allow you to select which previews to include in each test - Thumbnail and full-width device previews - 110+ device mobile, desktop, and webmail previews, including light mode and dark mode renderings - Expandable sidebar with full-screen previews - Gemini and Apple Intelligence AI summaries give you a sense of how popular AI tools will interpret your emails in the inbox - Access additional features in the core Inbox Monster platform at no additional charge Inbox Monster’s Rendering extension works with the following ESPs: Iterable Here’s a guide to getting started: https://cdn.prod.website-files.com/6819fa062750991b6c2e9557/691f414dd558deb622c8a67f_11192025_IterableExtensionSetUp_V4.pdf Salesforce Marketing Cloud Here’s a guide to getting started: https://cdn.prod.website-files.com/6819fa062750991b6c2e9557/691f414e35bbb8ed0e674dc2_11192025_SFMCExtensionSetUp_V1.pdf Twilio Sendgrid Here’s a guide to getting started: https://cdn.prod.website-files.com/6819fa062750991b6c2e9557/691f414e16eaf477afde8746_11192025_SendGridExtensionSetUp_V1.pdf