When should I beautify versus minify email HTML?

Beautify when editing, debugging, or reviewing. Minify right before you ship — minified HTML is smaller but unreadable.

Does beautifying break Outlook conditional comments or VML?

No. The beautifier preserves Outlook conditional comments, VML blocks, and inline styles exactly as-is.

Will this work on emails exported from Mailchimp, Klaviyo, or HubSpot?

Yes. Paste exported HTML in, click Beautify, get a clean debuggable copy.

Can I beautify partial HTML snippets, or do I need a full document?

Both work — full documents, table fragments, or single elements.

HTML Email Beautifier

Format messy email HTML in one click.

A free HTML email beautifier that turns minified, copy-pasted, or chaotic email code into clean, indented, debuggable structure. Works on full templates and partial snippets.

Open the beautifier Need to minify?

Your HTML

Beautified output

Why every email developer needs a beautifier

Most HTML email lives a double life. The version you ship is minified — every byte counts, you need to stay under Gmail's 102KB clipping threshold. The version you read is beautified — indented, line-broken, table structure visible at a glance. EMLinter's HTML email beautifier flips between the two without breaking conditional comments, VML, or inline styles.

Paste a wall of minified ESP-exported HTML, click Beautify, and instantly see the table structure. Find the broken row. Fix it. Beautify is the first tool you reach for when something looks wrong and you need to read the code before you can debug it.

HTML Email Beautifier FAQs

An HTML email beautifier (also called a formatter or pretty-printer) takes messy, minified, or compacted HTML and reformats it with proper indentation, line breaks, and spacing. The result is readable code that's easy to debug, review, or hand off to a teammate. It does not change the rendering — only the appearance of the source.

Beautify when you're editing, debugging, or reviewing code. Minify right before you ship — minified HTML is smaller (helping you stay under Gmail's 102KB clipping threshold) but unreadable. A common workflow: beautify on import, edit, validate, then minify on export.

No. The beautifier preserves Outlook conditional comments (<!--[if mso]>), VML blocks, and inline styles exactly as-is. It only adjusts whitespace between tags so the structure becomes visible without changing how anything renders.

Yes. ESP-exported HTML is typically minified or has inconsistent indentation. Paste it in, click Beautify, and you get a clean, debuggable copy. Useful when you need to audit an existing campaign or fix a rendering bug.

Free, no signup, no upload. Everything runs in your browser — your HTML code is processed locally and never touches our servers.

Both work. The beautifier handles full <html>…</html> documents, table fragments, or even single elements. Useful for cleaning up a block you're copying between templates.