Free Email Signature Generator

What an email signature actually is

An email signature is the block of text and visuals appended to the end of an outgoing message. It usually carries your name, role, a phone number or two, and a link people can click to learn more. Most email clients let you save one and inject it automatically into every new message, so you write it once and it rides along on every reply for the next two years.

Worth clearing up: an email signature is not the same as an electronic signature (the legally-binding e-sig you draw on a contract in DocuSign or Adobe Sign). It is also not the same as an email footer, which is the compliance block — physical address, unsubscribe link — that sits at the bottom of marketing emails. If you need that one instead, our Email Footer Generator handles CAN-SPAM and GDPR fields.

What to include — and what to leave out

A good signature gives the recipient exactly what they need to identify you and reach you, and nothing else. Five items earn their place on almost every signature:

• Your name. First and last. Initials only if you are using them for brand reasons (V. Putin, J.K. Rowling).
• Role and company. "Senior Product Manager · Acme Co." Two pieces of context, one line.
• One phone number. Mobile, office, or WhatsApp — pick one. Two numbers force the reader to choose.
• One web link. Your company site, your LinkedIn, or your booking link. Not all three.
• A photo or company logo. Optional but it doubles the chance the reader remembers who you are. Either a 75–100 px headshot or your company mark. Not both.

Four things that look professional in your head and amateur in someone else's inbox:

• An inspirational quote. "Be the change you wish to see" reads like a high-school yearbook entry, not a professional sign-off.
• Every social platform you own. Pick the one your audience uses. Five icons in a row is visual clutter.
• A confidentiality disclaimer the length of a paragraph. Legal teams love them; recipients ignore them. If you must include one, keep it under 30 words.
• Stationery, decorative dividers, or background images. Most email clients strip them. The ones that do not, render them badly.

Sizing and weight that work everywhere

A signature lives or dies on three measurements: width, file weight, and character count. Get these wrong and your signature will either get clipped, get marked as spam, or get rendered as a broken image grid on mobile.

HTML and plain-text — why you need both

Modern email is multipart. RFC 2046 defines a content type called `multipart/alternative` that lets a single message carry both an HTML version and a plain-text version. The recipient's client picks the version it can render. Phones with old software, screen readers, command-line mail clients, and corporate gateways that strip HTML for security — they all fall back to the plain-text version.

A signature that exists only in HTML disappears in those contexts. The recipient sees the body of your message and then nothing. To anyone using a screen reader, your fancy signature was never sent. Our generator emits both versions automatically: the HTML block you paste into Gmail or Outlook, plus a plain-text version with the RFC 3676 "-- " delimiter that every modern mail client recognizes.

Accessibility — the part most generators skip

About one in five US adults has some form of disability, and many of them read email with a screen reader, a magnifier, or in high-contrast mode. A signature that looks great visually can be completely unreadable in those contexts. The federal accessibility standard (Section 508) and the international one (WCAG 2.1) both apply to email signatures from any organization subject to them, which includes most US federal contractors and most EU businesses.

Four rules that move your signature from "looks fine" to "actually accessible":

1. Hit 4.5:1 contrast ratio between text and background. WCAG 1.4.3 minimum. A pale grey #999 on white #fff is 2.85:1 — fails. Bump to #555 (7.46:1) and you are clear.
2. Give every image an alt attribute. Photos: `alt="Photo of Alex Johnson"`. Logos: `alt="Acme Co. logo"`. Decorative dividers: `alt=""` (empty, so screen readers skip them).
3. Avoid image-only signatures. Putting your entire signature into one rasterized PNG might look pixel-perfect, but screen readers will announce a single chunk of meaningless filename and Outlook will block the image by default until the recipient clicks Show Images. The text underneath is the part that has to work.
4. Test reading order in dark mode. Many corporate inboxes default to dark mode. White-on-white text becomes invisible. Specify both colors explicitly in your inline styles rather than relying on the client to invert.

Installing your signature in five common clients

Generating the HTML is the easy part. Getting it installed correctly is where most people lose 10 minutes hunting through settings menus. Step-by-step for the five clients people actually use:

Gmail (web)

1. Open Gmail. Click the gear icon in the top right, then "See all settings".
2. Stay on the General tab. Scroll until you see "Signature".
3. Click "Create new", give the signature a name (e.g. "Work"), and paste your generated signature into the editor.
4. Below the editor, under "Signature defaults", set the signature for "FOR NEW EMAILS USE" and "ON REPLY/FORWARD USE".
5. Scroll to the very bottom and hit "Save Changes". Gmail discards everything if you skip this.

Outlook for Windows (desktop)

1. Open Outlook. Hit File → Options → Mail → Signatures.
2. Click "New", give the signature a name, then paste the HTML into the editor.
3. Pick the email account this signature applies to, and set it as the default for "New messages" and "Replies/forwards".
4. Click OK twice to close out. Send yourself a test message to confirm the signature renders correctly — Outlook on Windows uses the Word rendering engine, which strips some CSS that other clients accept.

Outlook on the web (Outlook.com / Microsoft 365)

1. Click the gear icon, then "View all Outlook settings".
2. Go to Mail → Compose and reply.
3. Paste your signature into the editor under "Email signature".
4. Check both boxes under "Select default signatures" so the signature appears on new mail and replies.
5. Hit Save. Reload the compose window to see the signature.

Apple Mail (macOS)

1. Open Mail. Go to Mail → Settings (or Preferences on older macOS) → Signatures.
2. Pick the account from the left column, then click the + button at the bottom of the middle column.
3. Name the signature and paste your HTML into the right column.
4. Drag the signature onto the account name in the left column to set it as the default for that account.
5. Close the Settings window. The next email you compose will include the signature.

iPhone Mail

1. Open Settings → Mail → Signature.
2. Tap "Per Account" if you want different signatures for work and personal mail.
3. Paste the signature. iPhone Mail strips most HTML formatting on this screen, so the result will be plain-text-flavored. Generate a compact plain-text version for mobile use.

Mistakes that make a signature look amateur

• Image-only signatures. Pretty in Photoshop. Unreadable to screen readers, blocked by default in Outlook, and useless when the recipient prints the email.
• Tracking pixels. That 1×1 transparent GIF that tells you when someone opens the email also tells spam filters you are a marketer. Pixels are why some signatures land in the Promotions tab.
• Stale information. Half the broken signatures in the wild list a phone number the person stopped using two jobs ago. Update yours when your role changes.
• Six different fonts. One font, two at most. Stick to web-safe fonts (Arial, Helvetica, Georgia, Times New Roman) or the email client will substitute something ugly.
• Hard-coded colors that fail dark mode. Black text on a white background becomes invisible when the recipient flips to dark mode and the client inverts everything. Specify both `color` and `background-color` explicitly.
• Mobile-busting widths. Setting `width: 800px` on a signature looks fine on your monitor and forces a horizontal scrollbar on every phone.

Generator vs. hand-coded HTML — when each makes sense

Hand-coding a signature in HTML gives you exact control: pixel-perfect spacing, custom CSS for hover states, and whatever weird layout you want. The cost is time (a good signature takes 2–3 hours to hand-code and test across clients) and the long tail of email-client quirks (Outlook strips `margin`, Gmail strips `<style>` blocks in the head, iOS Mail does its own dark-mode inversion).

A generator like this one gives you ~95% of the same result in 90 seconds, with the client-quirk handling already baked in. The tradeoff: a fixed set of templates and a defined set of customization options. You cannot, for example, add a custom calendar embed or animated GIF that auto-plays. For those, hand-code.

For most people most of the time, the generator wins. The exceptions: design agencies whose signature IS their portfolio, large companies enforcing pixel-perfect brand standards across thousands of seats, or teams that need to inject dynamic content (today's offer, the latest blog post) into every signature. Those workflows justify the hand-coded route or a managed enterprise tool.

Tailoring your signature for your role

The same template adapts to different roles by changing what goes in the optional slots. Five common variants:

Sales

A booking link is more useful than a phone number. Replace "Phone: +1 555…" with "Book a meeting: cal.com/yourhandle". Include the LinkedIn icon — prospects WILL check.

Customer support

Lead with the help-center link, not your direct phone number. Customers contacting support want to self-serve first. A line like "Help: support.acme.com/help · Reply to this email to reach me directly" gives them both paths.

Executive

Less is more. Name, title, company, one link. Skip the social icons. An executive signature with five social icons reads like a personal brand, not a CEO.

Student or academic

University name, program, expected graduation year. Optional: research interests, ORCID iD. Skip the photo unless your university requires one for student email policy.

Freelance

Lead with what you do, not who employs you. "Brand designer · Portfolio: yoursite.com" beats "Senior Designer · Acme Co." for someone whose next client lives in their inbox.