Free tool · Content

Stop Gmail
clipping your email.

Find out whether Gmail will clip your email, and what is making it heavy.

Runs entirely in your browser. No signup, nothing stored.
Total size0 bytes
  • 0% of the Gmail clipping threshold
VerdictPaste HTML
Base64 images
Inline styles
HTML comments
Whitespace

Gmail clips messages above roughly 102KB, hiding everything after the cut behind a "View entire message" link — including, critically, your unsubscribe footer. Tracking pixels below the cut never fire, so opens under-report too.

How this works

The method, not the marketing.

Gmail clips messages above roughly 102KB, hiding everything past the cut behind a "View entire message" link. The part that gets hidden is the bottom of the email — which is where your unsubscribe footer lives.

It also breaks measurement. Tracking pixels below the cut never fire, so a clipped campaign under-reports opens and looks worse than it performed.

The usual culprits are base64-embedded images, unused CSS from a framework, and whitespace. This measures UTF-8 bytes, which is what the threshold applies to, and breaks down where the weight is going.

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