The Maildeno email builder is a visual, code-free environment for creating responsive email templates. Product and marketing teams use it to design emails; developers integrate the output via the Render API.
Builder sections
The builder dashboard is split into three main areas:
| Area | Description |
|---|---|
Template Library |
Browse, duplicate, and organise all your templates. Filter system templates by tag. |
Editor |
Drag-and-drop canvas where you assemble and style your email layout. |
Settings Panel |
Per-block and per-row configuration — fonts, spacing, colours, visibility rules, and merge tag insertion. |
How templates relate to the API
When you finish designing a template:
-
Copy the Template ID from Template Settings.
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Use that ID in any SDK call (
renderHtml(templateId, …)) or direct REST request. -
Supply merge tag values and context at render time — the builder is never involved at runtime.
This clean separation lets designers iterate on templates without touching application code, and lets developers render them in any backend service.
Learn more
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Drag & Drop Editor — blocks, rows, columns, and styling
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Templates — versioning, duplication, publishing
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Merge Tags — dynamic content injection
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Visibility Rules — conditional content by context
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Exporting — HTML, React Email, MJML
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API Keys — creating and scoping keys