🛠 Developer Tool

HTML Email Preview Tool

Paste your HTML email code below to see exactly how it will render. Toggle between desktop and mobile views to ensure your design is fully responsive.

📝 HTML Source Code
Live Sync Active
👁️ Rendering Preview

📖 How to Preview Your HTML Email

01

Paste Your Code

Copy your raw HTML email code from your editor and paste it into the source code box above.

02

Real-time Rendering

The preview updates instantly. Any changes you make to the styles or content are reflected in the frame below.

03

Check Responsiveness

Switch to the "Mobile" view to see how your media queries and fluid layouts behave on smaller screens.

04

Verify Links & Images

Interact with the preview to check that your images load correctly and your call-to-action buttons are placed properly.

💡 About HTML Email Development

Designing for email is vastly different from designing for the modern web. Email clients like Outlook, Gmail, and Apple Mail use different rendering engines, making testing a critical step in your workflow.

  • Inline Styles: Most email clients prefer inline CSS over external or internal style sheets. Ensure your preview looks consistent by inlining your styles.
  • Table-Based Layouts: While modern web design uses Flexbox and Grid, complex email layouts often still rely on HTML tables for maximum compatibility across older versions of Outlook.
  • Image Hosting: For images to appear in this preview and in your subscribers' inboxes, they must be hosted on a public server with absolute URLs (e.g., https://yoursite.com/image.jpg).
  • Media Queries: Use the Mobile toggle in our tool to verify that your @media rules are correctly triggering for narrow viewports.