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I built a small email template builder after getting frustrated with ESP editors and bloated exports.
It is a single HTML file. No build step, no backend, no dependencies. You open it in a browser and it works offline.
The editor is block based and outputs clean, table based HTML with inline styles. The goal was not to reinvent Mailchimp, but to generate markup you can actually understand, edit, and paste anywhere without surprises.
Features include • Header, text, image, button, columns, divider, spacer, quote, social, footer blocks • Table based layout compatible with Outlook • Responsive behaviour using email safe patterns • Optional preheader support • Undo and redo • LocalStorage autosave • Export raw HTML or save templates as JSON
It is currently free and public. I built it mainly for myself but figured others here might find it useful.
Would appreciate feedback, especially from people who regularly deal with HTML email quirks or ESP limitations.
Happy to answer any technical questions about how it works.
