Email Signature Generator

You send dozens of emails every day. Each one is a chance to reinforce your brand, share your contact info, and look professional — or not. A well-designed email signature does all three automatically. This generator creates clean, HTML-based signatures that work across Gmail, Outlook, Apple Mail, and every other major client without breaking layouts or looking like a 2005 MySpace page.

How HTML email signatures work

Email signatures are HTML snippets that get appended to every email you send. The tricky part is that email clients are far more restrictive than web browsers — Outlook uses Microsoft Word's rendering engine, Gmail strips out most CSS, and mobile clients have their own quirks. That's why our generator uses table-based layouts with inline styles, which is the only reliable way to make a signature render consistently everywhere. The result is a signature that looks the same whether your recipient opens it on an iPhone, in Outlook 2019, or in Gmail on Chrome.

Why this matters for email marketers

For individual senders, your signature is your business card — it's how people find your website, social profiles, and phone number. For marketing teams, consistent signatures across the company reinforce brand recognition. A signature with a link to your latest content or a current promotion turns every 1:1 email into a subtle marketing channel. Companies that add a CTA banner to their email signatures report 2-5x more clicks than you'd expect from such a low-key placement.

Common mistakes to avoid

Don't use images for your entire signature — many email clients block images by default, leaving recipients staring at a broken layout. Keep images small and optional (like a headshot or logo) and make sure the text content stands on its own. Don't include more than 3-4 social links — a wall of icons looks cluttered and nobody clicks the seventh one. Avoid using web fonts — stick to system fonts like Arial, Helvetica, or Georgia that render everywhere. And please, keep it under 6 lines. A signature shouldn't be longer than the email itself.

How to use this with your email workflow

Generate your signature here, then install it in your email client. Before sending, verify your domain's email authentication is solid — check your SPF records and DKIM setup so your emails actually land in inboxes. If you're including links in your signature, run them through our UTM builder to track clicks. For marketing campaigns (as opposed to 1:1 emails), make sure your footer meets CAN-SPAM requirements — your signature is separate from the required unsubscribe and physical address information.