Does this HTML email minifier keep Outlook conditional comments?

Yes. The minifier removes standard HTML comments while preserving Outlook conditional comment patterns used in many email templates.

Can this help reduce Gmail clipping?

Reducing unnecessary markup can shrink your email size and may help reduce the chance of Gmail clipping long emails.

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HTML Email Minifier

Reduce code weight, remove clutter, and export leaner email HTML that is easier to send and less likely to clip.

Email Marketing Tool

Clean bulky email HTML before it reaches the inbox.

Paste your newsletter or upload an HTML file to remove comments, collapse whitespace, and export a lighter version. Processing runs in your browser, so your email code stays on your device.

Original HTML

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Upload File

Minified Output

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Optimization Rules

Remove standard HTML comments Preserves Outlook conditional comments while stripping normal comments from the markup.

Remove empty lines Deletes blank rows that increase file size without affecting rendering.

Collapse repeated spaces Converts long runs of tabs or spaces into cleaner single spaces.

Strict minification Removes most structural line breaks and spaces between tags for maximum reduction.

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We will show how much space you saved after minifying your HTML email.

Why use this tool

Reduce send weight

Trimming unnecessary code can make campaigns lighter for inbox providers and easier to manage across platforms.

Protect email compatibility

The comment removal logic is designed to keep common Outlook conditional markup intact.

Stay private

Your HTML is processed locally in the browser without uploading templates to a server.

How to Use the HTML Email Minifier

Paste or upload your email HTML

Load the full email source code by pasting it into the editor or uploading an `.html`, `.htm`, or `.txt` file from your device.

Choose the cleanup level

Enable or disable comment removal, whitespace cleanup, empty-line removal, and strict minification based on how aggressively you want to compress the code.

Minify and export the result

Run the minifier, review the file-size savings, then copy the optimized HTML or download it for your campaign workflow.

Frequently Asked Questions

Will this break my email template?

The tool focuses on whitespace and comment cleanup. If you use strict minification, it is still a good idea to send a test email before final delivery.

Can I upload a file instead of pasting?

Yes. Upload an `.html`, `.htm`, or `.txt` file and the editor will load it automatically.

Does it help with Gmail clipping?

Reducing unnecessary markup can lower the total email size and may help reduce the chance of Gmail clipping longer campaigns.

Does it keep Outlook conditional code?

Yes. The comment-removal logic is designed to preserve common Outlook conditional comments used in email templates.

Is my HTML uploaded anywhere?

No. The minification runs directly in your browser, so your email markup stays on your own device while you work.