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Cardline

Free tool

Email signature generator

Fill in the fields, pick a layout, copy the signature. The markup is nested tables with inline styles and a system font stack — the only combination that still renders the same in Gmail, Outlook's Word engine and Apple Mail.

Layout
Accent

Everything happens in your browser. Nothing you type is transmitted or stored.

Live preview

Rendered from the exact markup you will paste.

Your name
 

Install it

Gmail

  1. Click Copy signature below.
  2. Gmail → Settings → See all settings → General → Signature → Create new.
  3. Paste into the editor box (Cmd/Ctrl+V), then Save changes at the bottom.

Outlook (web and desktop)

  1. Click Copy signature below.
  2. Outlook → Settings → Mail → Compose and reply → new signature.
  3. Paste, name it, then set it as default for new messages and replies.

Apple Mail

  1. Click Copy signature below.
  2. Mail → Settings → Signatures → + to add one.
  3. Uncheck 'Always match my default message font', then paste.

Why it renders

Four rules this generator will not break

Every one of them is a client bug someone else's signature builder ignores.

Tables, never flexbox

Outlook on Windows renders through Word. Flex and grid collapse, tables do not.

Inline styles, never a <style> block

Gmail strips head styles on forwarded mail, so anything not inline disappears mid-thread.

System fonts, never web fonts

Mail clients do not fetch fonts. A fallback you chose beats one the client picked.

Hosted images, never pasted ones

Pasted images become attachments — the paperclip and broken-box combination recipients distrust.

Need the QR or the contact file too? QR code generator and vCard generator.

FAQ

Email signature questions

A signature is one channel. Your card is the record.

Cardline keeps every teammate's details current in one place — signature, QR, wallet pass and link all point at it.