Email Device Preview & AI Summary Tool

Tracking since Apr 19, 2026.

Changelog

• Jun 7, 2026
  description

  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

  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

• Apr 24, 2026
  host_permissions

  https://*.exacttarget.com/cloud/*, https://*.marketingcloudapps.com/*, https://*.sfmc-content.com/*, https://*.sendgrid.com/*, https://app.iterable.com/*, https://*.inboxmonster.com/*, https://www.innovaitionlab.com/*, http://localhost/*

  https://*.exacttarget.com/cloud/*, https://*.marketingcloudapps.com/*, https://*.sfmc-content.com/*, https://*.sendgrid.com/*, https://app.iterable.com/*, https://*.ngrok-free.app/*, https://*.ngrok.app/*, https://*.ngrok.io/*, https://*.inboxmonster.com/*, https://www.innovaitionlab.com/*, http://localhost/*

Permissions & access

Permissions

storage

Host access

https://*.exacttarget.com/cloud/*, https://*.marketingcloudapps.com/*, https://*.sfmc-content.com/*, https://*.sendgrid.com/*, https://app.iterable.com/*, https://*.ngrok-free.app/*, https://*.ngrok.app/*, https://*.ngrok.io/*, https://*.inboxmonster.com/*, https://www.innovaitionlab.com/*, http://localhost/*

Screenshots

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