About Email Craft Kit

Last updated 2026-10-13

Email Craft Kit is a free set of email tools for small businesses, marketers and email developers: an email signature generator with templates and team signatures, a handwritten signature maker, newsletter footers, HTML email templates and a builder, and checks for HTML, size, dark mode, subject lines, preheaders, spam-filter wording, message headers and DMARC reports. Each page does one job and works straight away: there is no account and nothing to install.

What the tools do, and what they do not

• Facts from the source. Limits and rules come from the RFCs, the FTC’s CAN-SPAM guide, the mail providers’ own help pages and the open Can I email support data; each page lists its sources with the date we checked them. Figures that no primary source states are labelled as reported or left out.
• Checks read only what you give them. The site does not send email, does not look up DNS records and cannot see sender reputation, so it never promises inbox placement.
• What you make is yours. Signatures, footers, templates and images made here may be used for any purpose, including commercial use, without attribution.

How it works

• Everything runs in your browser. What you type or choose stays on your device; nothing is uploaded.
• Results are computed, not typed in. The examples on each page are produced by the same code the tool runs, and the code is tested against independently calculated results.
• Third-party material used on the site is listed on the credits page.

If a tool gives a wrong result, please tell us through the contact page.

Who runs it

Email Craft Kit is owned and operated by the Email Craft Kit team. You can write to us at support@xny818.com.

Advertising

The site is free to use. We may show advertising in future to pay for hosting and development. If we do, ads will be labelled “Advertisement”, will never cover a tool, and are described in the privacy policy.