Free Tool

Email Signature Builder

Build a professional HTML email signature in minutes, then copy it straight into Gmail, Outlook, or Apple Mail.

100% freeNo sign-upNo watermarkNo usage limits

Choose a template

Pick the layout that fits your style.

What is an HTML email signature?

An HTML email signature is a block of formatted code that appears at the bottom of every email you send. Unlike plain-text signatures, HTML signatures support styled fonts, clickable links, profile photos, company logos, and social media icons, making every email feel polished and on-brand.

Gmail, Outlook, Apple Mail, and virtually every major email client support HTML signatures. Once you generate your signature here and paste it in, it renders automatically on every email you send.

How to add your signature to Gmail, Outlook, Apple Mail & more

For every rich editor (Gmail, Outlook, Apple Mail, Yahoo), the easiest route is the Copy for Gmail button on the preview screen, then paste with ⌘V / Ctrl V.

Gmail & Google Workspace

  1. 1Click "Copy for Gmail" above (puts the signature on your clipboard as rich content)
  2. 2In Gmail, open Settings (gear) → "See all settings" → General
  3. 3Scroll to Signature → "Create new", name it, click into the editor
  4. 4Paste with ⌘V / Ctrl V — it renders in place
  5. 5Set it as default for new emails and replies, then Save Changes

Outlook (new for Windows & Outlook on the web)

  1. 1Copy the signature with "Copy for Gmail" (rich paste)
  2. 2Open Settings (gear) → Account → Signatures
  3. 3Create a signature, click into the box and paste with ⌘V / Ctrl V
  4. 4Choose it as default for new messages and replies, then Save

Outlook (classic desktop, Windows)

  1. 1Go to File → Options → Mail → Signatures
  2. 2Click "New" and name your signature
  3. 3Click into the edit box and paste with Ctrl V
  4. 4Set defaults for new messages / replies, then click OK

Apple Mail (Mac)

  1. 1Open Mail → Settings → Signatures
  2. 2Select your account, click + to add a signature
  3. 3Uncheck "Always match my default message font"
  4. 4Select the placeholder text and paste with ⌘V
  5. 5If layout drops, quit Mail and replace the file in ~/Library/Mail/.../Signatures with the downloaded .html (use "Download .html"), then reopen

Apple Mail (iPhone & iPad)

  1. 1iOS Mail signatures are plain-text only, so set the rich signature up on a Mac and let it sync via iCloud
  2. 2Or paste a text version into Settings → Mail → Signature (use "Copy Plain Text")

Yahoo Mail

  1. 1Open Settings → More Settings → Mailboxes
  2. 2Select your account → Signature, and toggle it on
  3. 3Click into the box and paste with ⌘V / Ctrl V
  4. 4Changes save automatically

Thunderbird

  1. 1Download the file with "Download .html" above
  2. 2Go to Account Settings → your account
  3. 3Tick "Attach the signature from a file instead" and select the .html
  4. 4(Or paste into the signature box with HTML enabled)

Why your email signature matters

Builds trust on every email

A professional signature with a real photo, title, and website instantly signals legitimacy. Prospects are far more likely to reply to a human than a bare name at the bottom of an email.

Reinforces brand consistency

Every email you send is a brand touchpoint. Consistent fonts, colors, and logo placement make your company look established, even if you're a small team.

Drives clicks without extra effort

A CTA button in your signature, 'Book a Call', 'View case study', 'Visit our site', generates passive clicks from people already reading your email.

Improves deliverability signals

Emails with complete, professional-looking signatures see lower spam complaint rates. Inbox providers use engagement signals to judge sender reputation over time.

Frequently asked questions

Is this email signature generator really free?

Yes, completely free. No sign-up required, no usage limits, and no watermark or branding added to your signature.

Will my signature work in Gmail, Outlook and Apple Mail?

Yes. Every template uses table-based, inline-style HTML with hosted PNG icons, the standard approach for maximum compatibility across Gmail, Outlook (including the desktop app), Apple Mail, Yahoo, and mobile clients. Social icons sit on white discs so they stay visible in dark mode.

Why does my photo need to be a URL?

Hosting your photo at a stable URL (your company website, or your LinkedIn profile photo) ensures it renders reliably for every recipient. The Copy for Gmail button can also carry an embedded image, but a hosted URL is the most robust option.

Can I use my LinkedIn profile photo?

Yes. Open your LinkedIn profile, click your photo to view it full-size, right-click the image, and choose 'Copy image address'. Paste that URL into the Profile Photo field.

Can I add my company logo?

Yes. Paste a hosted URL to your logo in the Identity step and it renders beneath your signature in every template.

Can I add a promotional banner?

Yes. Turn on the Promotional Banner add-on, paste a banner image URL, add an optional link, and choose a width. It appears as a clickable image below your signature.

What is a CTA button in an email signature?

A call-to-action button is a small clickable link styled as a button, for example 'Book a Call' linking to your Calendly. Enable it in the Social step and enter a label and URL. It degrades to a flat, solid button in Outlook.

How do I change the colour and font?

On the Preview screen, open the style panel to choose from preset accent colours or type any hex code, and pick from email-safe fonts. The accent colour drives the divider, headers and monogram, and the CTA button.

Improve your email deliverability

A great signature is one part of the equation. If your emails aren't reaching the inbox, the problem is usually warming, authentication, or domain reputation.

Email Warming →Email Auth Checker →Deliverability Guide 2026 →