Getting the html codes of existing Mailerlite HTML forms ain’t that straight forward.
If you want to get the html code of a Mailerlite form, sign in to your Mailerlite account, click on FORMS tab, click EDIT next to the form which you want to get it’s code and click SAVE.
After you click SAVE, you will see where you can copy the javascript, html or iframe code as seen below :
Enjoy!