In simple English
This tool lets you build email messages by dragging pieces onto a page. It runs in your web browser and shapes your design into clean HTML code. The visual rules come from your chosen template rather than the editor itself. You need some technical knowledge to host it on your own server. It costs you time to set up, but it is free to use under an open source licence.
What it is
Mosaico is an open source JavaScript library (a collection of code that adds features to web pages) that provides a visual editor for responsive (automatically resizing to fit phones and desktop screens) email templates. It handles the layout logic while letting you define your own visual styles through custom templates.
What it is good for
Solo builders and small teams who want to add a professional drag-and-drop email builder to their own web application without paying for a commercial service.
- Runs entirely in the browser for a fast editing experience.
- Templates control the design rules so your brand stays consistent.
- Exports clean HTML code ready to send through any email service.
- Requires a separate backend server to store and load your templates.
- Setup needs Node.js and Grunt knowledge if you want to modify the source code.
- Comes with only one production-ready template by default.
Writing raw HTML tables by hand or paying for hosted email builder tools
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git clone https://github.com/voidlabs/mosaico.git cd mosaico npm install npm install -g grunt-cli grunt