This email previewer does three things:
- Let’s you draft/modify a HTML template with variables containing handlebars & instantly preview it in the browser
- Put some test variables into JSON to see that they’re working
- Send a test email to Mailtrap
Live demo - https://handlebars-email-html-previewer.vercel.app/
Server code that connects with Mailtrap https://github.com/nsmet/mailtrap-node-relay