Gmail Email Signature Generator

Gmail uses a proprietary HTML sanitizer that strips external resources and rewrites CSS selectors. When you paste HTML into Gmail's signature box, the platform converts external stylesheets to inline equivalents—if it recognizes them. Anything it doesn't recognize gets deleted. This is why signatures built in other generators look fine in Outlook but appear broken in Gmail: they rely on CSS class selectors or external image URLs that Gmail removes entirely. Gmail also has specific rules about table behavior. Nested tables deeper than two levels collapse into a single flat structure, destroying your layout. Background images coded as CSS properties vanish. Margin and padding values sometimes get recomputed. Border colors shift. SignatureFox solves this by building signatures with Gmail's constraints from the start. Every element uses inline styles instead of classes. Every image embeds as base64 data, not a URL. Tables stay shallow. We test every signature in Gmail's web client, mobile app, and tablet view before you download it. The HTML file you receive won't require any edits—it's ready to paste directly into Gmail's settings. No debugging. No broken images. No missing colors when your client opens your email.

After you purchase your SignatureFox signature, you'll receive an HTML file and Gmail setup guide via email. Open the HTML file in a text editor—not a browser—and copy the entire code block. Go to Gmail Settings, scroll to 'Signature,' and paste the full HTML into the text field. Don't use Gmail's visual editor or try to edit the signature in compose mode. The plain text area preserves your base64 images and inline styles without corruption. Once pasted, click 'Save Changes' and compose a test email to yourself. Open it in Gmail, Outlook, and your phone to verify the logo appears, colors render correctly, and alignment looks right. If you need to make edits later—change your phone number, update your title—the $4.99 edit link lets you modify the signature without purchasing again. Gmail doesn't offer native editing, so SignatureFox provides a private edit page that regenerates your HTML with your new details. Save the updated file and re-paste it into Gmail settings. This workflow takes 90 seconds total and keeps your signature current without design loss.