Email HTML Templates are pre-designed layouts that can be used to create visually appealing and professional-looking emails. These templates are coded using HTML and CSS, allowing for customization and branding.

Email HTML Templates make it easier to create consistent and visually appealing email campaigns. They provide a starting point for designing emails and save time by eliminating the need to code from scratch. With a wide range of templates available, users can choose the one that best suits their needs and customize it as necessary.

There are various email HTML template editors available that simplify the process of creating and editing email templates. These editors often have a drag-and-drop interface, making it easy to add elements, images, and text to the template. Some popular email template editors include Mailchimp, Constant Contact, and Campaign Monitor.

Using email HTML templates and editors allows businesses and individuals to create professional-looking emails that are visually engaging and consistent with their brand. It helps in improving the overall email marketing strategy and increasing the likelihood of user engagement and conversions.

Here, you can find the best developer-friendly open-source and free HTML Email Template builders, that you can use in your email marketing.

1- MySigMail Card

MySigMail Card is a free and open-source email template editor that allows anyone to create beautiful catchy HTML email templates with just and drag-and-drop.

GitHub - mysigmail/card: An open source html email template builder with drag & drop editor
An open source html email template builder with drag & drop editor - GitHub - mysigmail/card: An open source html email template builder with drag & drop editor

2- Free Responsive HTML Email Template

This is a responsive mobile-friendly HTML email template that anyone can easily customize.

GitHub - leemunroe/responsive-html-email-template: A free simple responsive HTML email template
A free simple responsive HTML email template. Contribute to leemunroe/responsive-html-email-template development by creating an account on GitHub.

3- React Email Editor

This one is a great drag-n-drop email editor by Unlayer as a React.js wrapper component. This is the most powerful and developer friendly visual email builder for your app.

4- Maizzle

Maizzle is an open-source project that allows you to build email templates with amazing utility-first CSS framework.

GitHub - maizzle/maizzle: Quickly build HTML emails with utility-first CSS.
Quickly build HTML emails with utility-first CSS. Contribute to maizzle/maizzle development by creating an account on GitHub.

5- Mosaico

Mosaico is a JavaScript library (or maybe a single page application) supporting the editing of email templates. The great thing is that Mosaico itself does not define what you can edit or what styles you can change: this is defined by the template. This makes Mosaico very flexible.

GitHub - voidlabs/mosaico: Mosaico - Responsive Email Template Editor
Mosaico - Responsive Email Template Editor. Contribute to voidlabs/mosaico development by creating an account on GitHub.


6- MJML

MJML is a markup language created by Mailjet. So in order to create emails on the fly we created a library with React components.

GitHub - wix-incubator/mjml-react: React component library to generate the HTML emails on the fly
React component library to generate the HTML emails on the fly - GitHub - wix-incubator/mjml-react: React component library to generate the HTML emails on the fly

7- Easy Email

Easy email is developed based on the MJML and has very good compatibility. At the same time, it can generate code through drag-and-drop editing.

Features

  • Drag and drop editor
  • Can be converted into MJML, or generated through MJML
  • Defined custom block
  • Dynamic rendering
  • Easily customize UI when you need
  • Theme configuration
GitHub - zalify/easy-email: React.js Drag-and-Drop Email Editor based on MJML. Transform structured JSON data into major email clients compatible HTML. Written in Typescript and supported both in browser and Node.js.
React.js Drag-and-Drop Email Editor based on MJML. Transform structured JSON data into major email clients compatible HTML. Written in Typescript and supported both in browser and Node.js. - GitHub…


8- Pine

Pine is an open-source email template framework that allows a modular and lightweight, responsive email framework.

GitHub - ThemeMountain/pine: A modular and lightweight, responsive email framework.
A modular and lightweight, responsive email framework. - GitHub - ThemeMountain/pine: A modular and lightweight, responsive email framework.

9- React Email Editor

GitHub - unlayer/react-email-editor: Drag-n-Drop Email Editor Component for React.js
Drag-n-Drop Email Editor Component for React.js. Contribute to unlayer/react-email-editor development by creating an account on GitHub.