Cross-client HTML email

html-email

A hand-authored, zero-dependency framework built on one principle: never drop support for the oldest clients. Every conditional comment, MSO hack, and VML fallback is documented and linted.

See it render

Open the actual email HTML in your browser. Both preserve the full cross-client compatibility engineering.

Framework build → The assembled output from framework/ partials, populated with the Northwind Botanicals winter-arrivals campaign. 2014 reference campaign → A production template from 2014, content-scrubbed to a fictitious brand, compatibility engineering byte-preserved.

Branded templates

Five distinct designs, each rebuilt in the house conventions with a fictitious brand and self-authored generated art. Click any one to open its built email.

Cairn Wellness template preview
Cairn WellnessWellness shop · green/cream/amber, Poppins
 Ferry Street Brewing template preview
Ferry Street BrewingBrewery · amber/brown, Oswald · tasting + gallery
 Lantern & Quill template preview
Lantern & QuillBookshop · coral/yellow, Playfair · team + products
 Voltline template preview
VoltlineElectronics, dark-first · pink, Space Grotesk · pricing
 Meridian Advisory template preview
Meridian AdvisoryConsulting · charcoal/coral, IBM Plex · quote block

Previews

Rendered from the framework build via headless Chrome.

Desktop, light mode
Desktop · light
Desktop, dark mode
Desktop · dark
Mobile, single column
Mobile · stacked

Build it yourself

Zero dependencies. Assemble the partials and lint the output:

cd framework/build && node build.mjs && node lint.mjs ../dist/email.html

View on GitHub Pre-send checklist →