A free email signature generator that works in Outlook too
This email signature generator builds a professional HTML signature in your browser: name, job title, company, phone, email, website, address, photo, company logo, social links, a call-to-action button, a banner and a legal disclaimer. You see it live in a mock email, on desktop and phone width, and in an approximation of dark mode. When it looks right, you copy it and paste it into Gmail, Outlook, Apple Mail or Thunderbird. There is no account, no watermark and no "made with" link, and nothing is uploaded.
Why the HTML looks old-fashioned (on purpose)
Classic Outlook for Windows renders email with the Word engine. It ignores flexbox, grid, most margins, background images and rounded corners. So every template here is built from nested tables, with inline styles on every cell, colours set both as bgcolor attributes and CSS, and explicit width and height attributes on images. Logo and banner sizes are measured from the real image, so Outlook does not stretch them. The result is the same layout everywhere. Only small touches degrade gracefully: classic Outlook shows square photos and badges and a solid colour where other apps show a gradient.
Social icons are small coloured cells with letters instead of image icons. They show even when the reader blocks images, which Outlook does by default for senders it doesn't know, and they don't depend on an icon host staying online.
Copy signature vs. Copy HTML
Gmail, Outlook and Apple Mail have a visual signature editor, not a code box. If you paste HTML code into them, the code itself shows up in your emails. Copy signature puts the formatted signature on the clipboard, the same as selecting it in a web page and pressing copy, so it pastes with layout, colours and links. Copy HTML gives the source code for apps and tools that ask for HTML, such as Thunderbird with "Use HTML" ticked, or a company signature manager.
Images: links, uploads and Gmail's 10,000 characters
Mail apps fetch signature images from the internet each time a message is opened. The most reliable setup is an image on your own website (or company site) with a direct https:// link. Links to Google Drive, Dropbox, OneDrive or iCloud share pages usually open a viewer page instead of the image and stay blank. The checklist under the preview warns about those, about http:// links, about images that cannot be loaded and about photos that are too small for sharp display.
You can also upload a photo or logo from your device. It is resized here (a photo to twice its shown size) and embedded in the signature. Outlook and Apple Mail accept that when you paste. Gmail does not: it drops pasted images that are not online, and an embedded image quickly exceeds Gmail's limit of 10,000 characters per signature. The counter next to the code shows how close you are.
Dark mode and phones
Many mail apps show messages in dark mode. Some invert the colours of your signature, others leave them alone. The Dark mail preview shows the inverting kind, which is the harshest case: a dark logo on a transparent background can disappear. The fix is a logo with a white or light background, or a light version of it. The Phone preview shows the width of a typical phone. Contact details that sit on one line wrap naturally instead of running off screen.
Your data and saved signatures
Everything runs in this page. Your details are kept in your browser's local storage so they are still there next time. With Save you can keep several signatures, for example an English and a Dutch one, or one per company, and switch between them. Export downloads your settings as a small file you can Import on another computer or send to a colleague as a starting point. The page uses no cookies and no tracking.