Developer email signature template.

What's in it

• —A dark window with a title bar showing your first name and your company's domain, like a shell prompt (jordan@example: ~).
• —A photo, 56px wide, beside “$ whoami” and your name.
• —Your title and company as a comment line: “# Head of Design @ Acme Inc.”
• —“$ cat contact.json” and a JSON block with only the keys you filled in: phone, email, web, and your social profiles by name. Each value is a link.
• —A cursor block at the last prompt, and the logo on a white chip at the bottom right.

Like every layout, it can also carry:

• —A sign-off line above the signature, such as “Best regards,”.
• —Your company's address and a disclaimer line below it, in small type on white.
• —A “View my card” link, if you turn on a digital business card for that person.
• —A banner under the signature, if your organization publishes banners.

Font: A monospace stack: Menlo, then Consolas, then Courier New, whichever the reader's computer has. This layout keeps it whatever font you pick.

In Gmail, Outlook and Apple Mail

We haven't tested the Developer layout in each mail app yet, so this page doesn't say how it looks there. To install it, follow the steps for Gmail, Outlook or Apple Mail, then send yourself an email to check it.

For every layout: classic Outlook for Windows blocks automatic picture downloads by default, so a reader there may see the photo and logo only after clicking “Download Pictures”.

Source: Microsoft support, checked November 7, 2026.

If a picture goes missing once it's installed:

• Outlook signature images not showingClassic Outlook blocks picture downloads by default. The reader allows them, or the sender fixes how the picture is sent.
• Gmail signature image not showingThe picture's address usually isn't public. Then check plain text mode, the reader's image setting and trimmed replies.
• Email signature logo showing as attachmentThe logo travels inside the message instead of being linked, often in plain text. Link it from a public address and send HTML.

Tips for the Developer layout

• —Social profiles appear as names in the JSON, not icons, so add the ones people should open.
• —The window fits its longest line up to 600px. A longer comment wraps onto another # line.
• —Your brand's rule color tints the JSON keys and the cursor, lightened if needed so it reads on the dark window.

The other nine layouts

• Modern email signature templateTwo lanes split by a brand hairline.
• Corporate email signature templateStationery with a brand rule and justified contacts.
• Executive email signature templateA portrait, Georgia, and a hairline footer.
• Consultant email signature templateA centered profile beside your contacts, in one card.
• Sales email signature templateA business card with a call button.
• Creative email signature templateA bold panel in your brand color.
• Tech email signature templateA Swiss spec sheet of labeled rows.
• Healthcare email signature templateA calm card with a badge for each detail.
• Education email signature templateA centered bookplate in a double frame.

Compare all ten side by side on email signature templates.