// Free Online Tool
Email Signature Generator
Create professional email signatures in seconds. Pick a template, add your details and logo, and copy straight into Gmail, Outlook, or Apple Mail. Everything runs in your browser - your data never leaves your device.
// FAQ
Frequently Asked Questions
Gmail: Go to Settings > See all settings > General > Signature. Click the compose area and press Ctrl+V (or Cmd+V on Mac) to paste your signature. Use the "Copy to Clipboard" button for best results - it pastes as rich text with formatting preserved.
Outlook (desktop): Go to File > Options > Mail > Signatures. Create a new signature, click in the edit box, and paste.
Apple Mail: Go to Mail > Settings > Signatures. Create a new signature and paste. Make sure "Always match my default message font" is unchecked.
Email clients have extremely limited CSS support. Gmail strips most CSS properties, Outlook uses Microsoft Word's rendering engine (which ignores flexbox, grid, and many modern properties), and Yahoo Mail has its own quirks. HTML tables with inline styles are the only layout method that renders consistently across all major email clients.
This is not a limitation of this tool - it's how professional email signature services like WiseStamp, HubSpot, and Exclaimer build their signatures too.
The logo is embedded as a base64 data URI directly in the HTML. This works in Gmail, Apple Mail, Thunderbird, and most web-based clients. Some versions of Outlook may block base64 images by default - recipients would see a placeholder until they click "Download images."
For maximum compatibility, you can host your logo online (e.g., on your website or an image host) and replace the base64 src in the HTML with a direct URL to the hosted image.
No. Email clients do not support @font-face or web font loading. The signatures use Arial, Helvetica, and sans-serif - these are web-safe system fonts available on virtually every device and operating system. Using custom fonts would result in unpredictable rendering as each email client falls back to its own default font.
No. Everything runs entirely in your browser using client-side JavaScript. Your name, email, phone number, logo, and all other information never leave your device. Nothing is sent to AtomnyX servers or any third party. When you close or refresh the tab, all data is gone - there is no server-side processing, no database, and no cookies related to your signature data.
Free Online Email Signature Generator - Professional & Compatible
This email signature generator creates professional, table-based HTML signatures that work reliably in every major email client - Gmail, Outlook, Apple Mail, Yahoo Mail, and Thunderbird. Unlike many generators that produce signatures using modern CSS (which breaks in email), this tool outputs table-based HTML with inline styles, the industry-standard approach used by professional email signature services.
Why You Need a Professional Email Signature
Every email you send is a touchpoint with clients, colleagues, and partners. A well-designed signature communicates professionalism and makes it easy for people to find your contact information, visit your website, or connect on social media. Studies show that emails with professional signatures have higher response rates and build more trust than plain-text sign-offs.
Five Templates for Every Style
- Classic: A traditional horizontal layout with your name prominently displayed, contact details below, a divider line, and social links. Works well in corporate and formal contexts.
- Modern: A two-column layout with your photo or logo on the left and information on the right, accented with a colored vertical bar. Great for creative professionals and startups.
- Minimal: Clean text-only design with subtle separators. Perfect when you want a polished look without visual weight - ideal for frequent emailers and developers.
- Bold: Eye-catching colored header bar with white text, paired with a light card body. Stands out in the inbox - great for sales, marketing, and personal branding.
- Elegant: Centered layout with decorative dividers and uppercase name styling. Refined and polished - ideal for executives, consultants, and luxury brands.
Built for Email Client Compatibility
Email rendering is one of the most fragmented environments in web development. Gmail strips <style> tags and many CSS properties, Outlook uses Microsoft Word's HTML renderer, and each client has unique quirks. This generator handles all of that by producing clean, table-based HTML where every style is applied inline - ensuring your signature looks consistent everywhere.
Privacy - What We Collect
Nothing. Signature generation is entirely client-side. No network requests are made with your data. AtomnyX does not receive, log, or store your name, email, phone number, logo, or any other information you enter. The only data that touches our servers is the initial page load.