About

Mailsinger is a free set of tools for building email signatures and HTML newsletters that look right in Gmail, Outlook and Apple Mail.

What you can do here

How it works

The builders run in your browser. Your details, designs and uploaded images are stored in your browser on your own device. Nothing you build is uploaded to our servers.

Why it is free

The tools are free to use, with no account and no watermark. The site may show advertising and may include affiliate links to email platforms, which is how it pays for itself. See the affiliate disclosure.

Limits

We build emails the way email apps need them, but apps differ and change over time. Send yourself a test before any important send.