What is an HTML email preview tool?

It is a free utility that renders your raw HTML email code inside a safe, sandboxed frame so you can see exactly how the layout, images, and buttons will look before sending the campaign to real recipients.

Is my HTML email code stored or shared anywhere?

No. Everything runs directly in your browser. Your HTML is never uploaded to a server or saved, and it disappears the moment you close or refresh the page.

Can I preview how my email looks on mobile devices?

Yes. Switch to the Mobile toggle to render your template inside a narrow, phone-sized frame so you can check how text, images, and buttons reflow on smaller screens.

Why do I need a Plain Text preview?

Many email clients and spam filters look at the plain text version of a message. This mode strips all HTML tags and shows the readable text content, so you can confirm it still makes sense without any styling.

Is it safe to preview HTML from an unknown source?

This tool sanitizes the HTML and renders it inside a sandboxed iframe that blocks script execution, so pasted code cannot run JavaScript or access your browser session.

Can I use this tool for cold email, newsletters, or invitations?

Absolutely. Sales teams, HR and recruiting professionals, educators, nonprofits, and event organizers all use this tool to double-check outreach emails, newsletters, and invitations before hitting send.

Mail Merge for Gmail

Open Mail Merge

Free HTML Email Preview Tool

Free online free html email preview tool to help you preview your HTML email quickly and easily. No registration required, instant results, and completely free to use.

Paste your HTML email code

0 characters

Preview mode

How It Works

Preview any HTML email exactly as your recipients will see it, in three quick steps.

Paste your HTML

Copy the raw HTML source of your email campaign and paste it into the input box. You can also load our sample email to try it instantly.

Choose a view

Pick Desktop, Mobile, or Plain Text to see exactly how your email renders on that layout before it ever reaches an inbox.

Preview & refine

Click Preview Email to render a safe, sandboxed version of your template, spot layout issues, then copy the plain text fallback.

Have Questions?

Everything you need to know about this tool, answered in plain language.

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