Email signatures and HTML email checks

Email Craft Kit Pro / API (coming soon)

We are planning a paid Pro / API option for companies, agencies and email teams who build signatures and check emails at scale. It is not available yet. If it sounds useful, leave your email below and we will tell you when it opens.

What stays free

Nothing that is free today moves behind Pro:

  • Every generator, checker and reference on the site, with all of its options.
  • Copying the HTML, downloading files, sharing a link and printing or saving as PDF.
  • Your data stays in your browser. The free tools never upload your details, logos or emails.

What Pro / API would add

  • Team signatures from one spreadsheet: upload a staff list once and get a matching signature for every person, and update them all when the design changes.
  • Hosted images: a stable web address for your logo and photos, so signature images load in every mail program without you needing your own server.
  • A JSON API: signature HTML and the HTML email checks (size, CSS support, preheader, spam words) from your own scripts or build pipeline.

There is no price yet and nothing to buy. Joining the list is free and does not commit you to anything.

We will send one email when it opens and will not use your address for anything else; see the privacy policy.