Free email signature generator
Build a clean HTML email signature in a minute. Pick a template, add your details, and copy a signature that renders properly in Gmail, Outlook and Apple Mail.
- Free, no signup
- Gmail, Outlook & Apple Mail
- 4 templates
- Nothing stored
Choose a template
Every template updates live with your details
Your details
Nothing is uploaded or stored. It all runs in your browser.
https:// is added for you.
Include your country code so it works abroad.
Email clients load images from the web, so paste a public https:// link to a PNG or JPG hosted on your site or CDN. Files on your computer and embedded images won't show.
Square, at least 176 × 176 px. Shown at 88 px, round.
PNG or JPG, exported at 2× the width you pick below.
Logo width
Bold shows it as a button. The other templates show it as a text link.
0 characters. Keep it short.
Accent colour
Email-safe fonts only. Web fonts don't load in most email clients.
Preview
Rendered exactly as an email client shows it
Copy signature copies it formatted, ready to paste into your email settings. Copy HTML is for apps with a source code box.
Ready to copy. Built with tables and inline styles for Gmail, Outlook and Apple Mail.
Add it to your email app
Copy the signature, then follow the steps for your app
Gmail on the web
- 1Click Copy signature above.
- 2In Gmail, click Settings (the gear icon), then See all settings.
- 3On the General tab, scroll to Signature and click Create new. Give it a name.
- 4Click into the editor box and paste (Ctrl+V on Windows, Cmd+V on Mac).
- 5Under Signature defaults, choose it for new emails and for replies and forwards.
- 6Scroll to the bottom of the page and click Save Changes.
The Gmail mobile apps have their own signature setting, which is plain text only.
Email signature generator in 3 steps
- 1
Pick a template
Classic, Photo left, Compact or Bold. Every preview updates with your details as you type.
- 2
Add your details
Name, contact details, a photo or logo by public link, social profiles and one call to action.
- 3
Copy and paste
Copy the formatted signature straight into Gmail, Outlook or Apple Mail, or copy the HTML for other apps.
Signatures that survive every inbox
Built the way email developers build email: tables, inline styles and nothing that a mail client strips out.
Four tasteful templates
A classic text stack, a round photo with a divider, a compact two-liner and a bold layout with a button.
Email-safe HTML
Nested presentation tables, inline styles only, no classes, no style blocks and no web fonts.
Bulletproof button
The call-to-action button is a coloured table cell, so it renders in classic Outlook too.
Real email preview
The signature renders in an isolated frame under a sample message, just as a recipient sees it.
Checks as you type
Warnings for images that won't load, invalid links, long disclaimers and Gmail's 10,000-character limit.
Copy, HTML or download
Rich-text copy for pasting into settings, raw HTML for apps with a code box, or a .html file.
How to make an email signature that works everywhere
An email signature is read hundreds of times a week, often on a phone, in a reply thread, in a client you have never tested. The best signatures are short, readable and built so every client shows them the same way.
What to include, and what to leave out
- Include: your name, role and company, one or two ways to reach you (email, phone or website), and at most one call to action.
- Maybe: a small photo or logo, two or three social profiles that matter for your work, and a short address if people visit you.
- Leave out: quotes, animated GIFs, large banners, pasted-in images, and every social network you're on.
Hosting and sizing images
Signature images are loaded from the web every time the email is opened. Upload them to your own website or a CDN and link to them over https://. Files on your computer won't display for recipients, and Gmail removes images embedded as data: URIs from signatures. Share links from cloud drives usually open a web page rather than the image, so use a direct link to the file.
Show a headshot at about 80 to 100 pixels square and a logo at around 100 to 160 pixels wide. Export each image at twice that size (for example 176 × 176 px for an 88 px photo) so it stays sharp on high-resolution screens. Use PNG or JPG: Gmail and Outlook don't display SVG, and classic Outlook for Windows doesn't display WebP.
Why tables and inline CSS
Email clients are not browsers. Gmail removes many styles, and classic Outlook for Windows renders email with Microsoft Word's engine, which ignores flexbox, grid and most modern CSS. That's why this generator lays everything out with nested <table> elements, puts every style inline, sets image sizes as attributes, and sticks to fonts such as Arial, Georgia and Verdana that are installed almost everywhere. The button is a coloured table cell rather than a styled link, so it keeps its background in Outlook.
Dark mode
Many mail apps offer a dark mode, and some of them invert or adjust the colours in your signature. Logos with transparent backgrounds and dark text can disappear on a dark background, so give logos a solid or light background, or check that they read well on both. Choose an accent colour with enough contrast that it still works when the client changes it, and send yourself a test email with dark mode on.
Legal disclaimers
What your business emails must contain depends on where your company is registered. In the UK, for example, companies must show details such as their registered name, company number and registered office address on business emails. Keep it to a line or two, and link to a full policy page rather than pasting paragraphs of legal text into every email. Long confidentiality notices add clutter and push your emails closer to Gmail's 10,000-character signature limit.
A tip for founders
Your signature is the one piece of marketing in every email you send, so give it a single job. Add a booking link from Cal.com, Calendly or similar in the Social section, or set one call to action, such as Book a demo or Try it free, and choose the Bold template to show it as a button. One clear action gets more clicks than five competing ones. When the conversation moves into your product, a dunning email or an onboarding sequence does the rest.
How do I add an HTML signature to Gmail?
Click Copy signature, then in Gmail open Settings (the gear icon), choose See all settings, and on the General tab scroll to Signature. Click Create new, name it, paste into the editor, choose it under Signature defaults, then click Save Changes at the bottom of the page.
Why doesn't my signature image show up?
Email clients load signature images from the web. An image stored on your computer, an embedded data: image (which Gmail strips) or a share link from a cloud drive won't display for recipients. Upload a PNG or JPG to your website or a CDN and use its public https:// link.
What size should my email signature photo and logo be?
A headshot usually looks best shown at around 80 to 100 pixels square; this generator shows it at 88 px. Export images at twice the displayed size, for example 176 × 176 px for the photo, so they stay sharp on high-resolution screens, and keep file sizes small.
Will this signature work in Outlook?
Yes. The signature is built from HTML tables with inline styles and email-safe fonts, which is what Outlook, including classic Outlook for Windows, renders reliably. Classic Outlook ignores rounded corners, so a round photo or button shows square there.
Why are social links text instead of icons?
Icon images are often blocked until the recipient allows images, and some clients show them as broken boxes or attachments. Text links always display, are readable by screen readers, and keep the signature light.
Is my information stored or uploaded?
No. The signature is generated in your browser as you type. Nothing you enter is uploaded or saved on our side, and images are only referenced by the links you provide.
Should I include a legal disclaimer in my email signature?
It depends on where your company is registered. Some countries require certain company details in business emails; for example, UK companies must show details such as their registered name and number. Keep any disclaimer short, and check the rules that apply to you.
What should a founder put in an email signature?
Your name, role and company, one or two ways to reach you, and a single call to action, such as a booking link for a demo or intro call. Skip quotes, long lists of social links and large banners.
Keep going
Your signature gets the reply. Atlis keeps the user.
Atlis tracks what each user does after signup and sends lifecycle emails automatically: onboarding nudges, re-engagement for inactive users, and failed-payment recovery through Stripe or Paddle.
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