Skip to content

Free tool

No signup requiredRuns in browser

Email HTML Cleaner

Format, minify, strip unsafe tags, inline CSS where supported, and review warnings before exporting email HTML.

Your content stays in your browser unless you choose to import into Memo.

Processed in your browser. Max 512 KB. Not stored on Memo servers unless you import.

Paste HTML to clean and format.

Related tools

Frequently asked questions

Does this inline all CSS perfectly?
It inlines simple selectors. Complex media queries and pseudo-classes may need manual review.

About this tool

Clean, format, minify, and inline CSS in email HTML - with warnings for unsupported patterns.

How to use Email HTML Cleaner

  1. Paste HTML and choose clean, inlined, or minified output.
  2. Review warnings and before/after size.
  3. Copy, download, or import into Memo.ly.

What it checks or simulates

  • Scripts and unsupported tags
  • Empty tags and malformed nesting signals
  • Unsupported CSS properties and selectors
  • Gmail clipping size estimate

Best practices

  • Inline critical styles before ESP export.
  • Remove comments and unused style blocks.
  • Keep merge tags and placeholders intact.

Learn more

Disclaimer

Email HTML Cleaner provides practical guidance and simulation only. Memo.ly does not send email, guarantee inbox placement, certify accessibility or legal compliance, or promise pixel-perfect rendering in every email client.

  • Does not guarantee universal client compatibility.
  • CSS inlining supports simple selectors only.