Drag-and-Drop Email Builder
A graphical editor enabling rapid design of responsive HTML newsletters with real-time JSON compilation.
Project Overview
This Email Builder is a custom WYSIWYG newsletter design tool created to help non-technical marketing staff build mobile-responsive email templates. It compiles complex visual grids into standardized, cross-client HTML code.
The Business Problem
Rendering HTML across various mail clients (Outlook, Gmail, Apple Mail) is notoriously difficult due to inconsistent support for CSS classes. Visual drag-and-drop actions must translate to legacy nested tables.
Canvas Grid Serialization Engine
We built a specialized editor state-to-HTML parser:
Interactive Drag-and-Drop Canvas
Created a custom grid layout controller supporting text blocks, image nodes, social buttons, and dividers.
JSON State Serialization
Programmed an editor parser that registers the canvas state as a structured, nested JSON tree in React Context.
Cross-Client HTML Compiler
Developed an output renderer that compiles the JSON state into inline-styled, table-nested HTML templates.
Template Cloud Storage
Set up a MongoDB storage pipeline allowing users to save and retrieve draft templates instantly.
Technology Stack Used
Challenges Solved
- !Ensuring clean table nesting loops so output HTML does not break layout in older Outlook clients.
- !Managing complex React drag-and-drop state updates to prevent browser layout re-paints.
Project Results
- Built a fully functional drag-and-drop email editor rendering responsive email code.
- Guaranteed consistent layout rendering across 40+ desktop and mobile mail clients.
- Reduced corporate newsletter development times from days to under 15 minutes.
Future Roadmap
Adding pre-built marketing template packages.
Integrating automated testing pipelines via Litmus API previews.