How to Add a Signature to Gmail (2026 Guide)

Add a professional HTML email signature to Gmail in under two minutes. This step-by-step guide covers Gmail on desktop and the Gmail mobile app. Free signature generator included — no signup.

Create your free Gmail signature →

Step-by-step: add an HTML signature in Gmail

  1. Create your signature with the TooStamply email signature generator and click "Copy for Gmail".
  2. Open Gmail Settings — click the gear icon, then "See all settings".
  3. Scroll to the Signature section on the General tab.
  4. Click "Create new", name your signature, and click inside the editor.
  5. Paste with Ctrl+V (Cmd+V on Mac) — formatting, colors, and links are preserved.
  6. Set defaults for "For new emails" and "On reply/forward".
  7. Save Changes at the bottom of the page.

Add a signature in the Gmail mobile app

Open the Gmail app, tap the menu, go to Settings, choose your account, tap "Mobile Signature", and type your signature. Mobile signatures are plain text only — use Gmail on desktop for full HTML.

Frequently Asked Questions

Why is my Gmail signature not showing up?

Make sure your signature is selected in both the "For new emails" and "On reply/forward" dropdowns, then click Save Changes at the bottom of Settings.

Can I add an HTML signature to Gmail?

Yes. Create it with TooStamply, click "Copy for Gmail", and paste it into the Gmail signature editor. Formatting is preserved.

How do I create a professional Gmail signature for free?

Use TooStamply — free, no signup. Fill in your details, pick a template, click "Copy for Gmail". Takes under two minutes.