@suaveplan/email-templates - Universal React-free email template engine: VNode factories, nine reusable components, five built-in templates (welcome, verification, password-reset, notification, invoice), typed registry, fluent builder, theme system, structured errors, OTel instruments. Produces email-safe HTML strings with inline styles; runs in Bun, Node, and browser.

Universal, React-free email template engine. Produces email-safe HTML strings with inline styles via VNode factories — runs identically in Bun, Node, and the browser.

Documentation tree

email-button — EmailButton is the canonical call-to-action surface in an email body — a table-wrapped <a> with variant-driven them…
- email-button — EmailButton is the canonical call-to-action surface in an email body — a table-wrapped <a> with variant-driven them…
email-container — EmailContainer groups related content inside an email body — a callout box, an info banner, a code-card. It emits a s…
- email-container — EmailContainer groups related content inside an email body — a callout box, an info banner, a code-card. It emits a s…
email-divider — A horizontal divider rendered as a single-row <table> whose <td> carries border-top: 1px solid <color>. The table…
- email-divider — A horizontal divider rendered as a single-row <table> whose <td> carries border-top: 1px solid <color>. The table…
email-footer — Renders the email footer block — company copyright, optional address, optional list of inline links (typically Privacy…
- email-footer — Renders the email footer block — company copyright, optional address, optional list of inline links (typically Privacy…
email-heading — Renders an <h1>…<h6> element with a level-keyed font-size and line-height schedule tuned for inbox-rendering ergono…
- email-heading — Renders an <h1>…<h6> element with a level-keyed font-size and line-height schedule tuned for inbox-rendering ergono…
email-image — Renders an <img> inside a centring <table> with the canonical responsive-email defaults (display:block, `max-widt…
- email-image — Renders an <img> inside a centring <table> with the canonical responsive-email defaults (display:block, `max-widt…
email-layout — EmailLayout is the root VNode every email template wraps its body in. It emits a 100%-width <table> with a themed m…
- email-layout — EmailLayout is the root VNode every email template wraps its body in. It emits a 100%-width <table> with a themed m…
email-link — Themed inline <a> link with safe defaults (target="_blank", rel="noopener noreferrer") for body-copy hyperlinks.…
- email-link — Themed inline <a> link with safe defaults (target="_blank", rel="noopener noreferrer") for body-copy hyperlinks.…
email-text — Paragraph component for email-body copy. EmailText emits a themed <p> with one of three size variants (body / `ca…
- email-text — Paragraph component for email-body copy. EmailText emits a themed <p> with one of three size variants (body / `ca…
error-codes — Stable error-code registry for @suaveplan/email-templates. Every failure raised by the package extends `SuaveplanErro…
- error-codes — Stable error-code registry for @suaveplan/email-templates. Every failure raised by the package extends `SuaveplanErro…
message — createEmailMessage glues the renderer to the addressing envelope, producing an EmailMessageResult plain object suit…
- message — createEmailMessage glues the renderer to the addressing envelope, producing an EmailMessageResult plain object suit…
renderer — The renderer is the bridge between the EmailTemplate<TProps> contract and a final { html, text, subject } triple re…
- renderer — The renderer is the bridge between the EmailTemplate<TProps> contract and a final { html, text, subject } triple re…
telemetry — Exposes the OpenTelemetry instrument set published by @suaveplan/email-templates. Every public render or registry mut…
- telemetry — Exposes the OpenTelemetry instrument set published by @suaveplan/email-templates. Every public render or registry mut…
template-builder — TemplateBuilder is a fluent API for assembling an EmailTemplate<TProps> value step-by-step. It exists because const…
- template-builder — TemplateBuilder is a fluent API for assembling an EmailTemplate<TProps> value step-by-step. It exists because const…
template-registry — TemplateRegistry is a type-safe in-memory store for EmailTemplate values keyed by name. It supports per-name lookup…
- template-registry — TemplateRegistry is a type-safe in-memory store for EmailTemplate values keyed by name. It supports per-name lookup…
invoice — The invoiceTemplate is the receipt / invoice / order-confirmation email. It renders a heading carrying the invoice nu…
- invoice — The invoiceTemplate is the receipt / invoice / order-confirmation email. It renders a heading carrying the invoice nu…
notification — The notificationTemplate is the generic system-notification email — a configurable severity callout suitable for prod…
- notification — The notificationTemplate is the generic system-notification email — a configurable severity callout suitable for prod…
password-reset — The passwordResetTemplate is the canonical password-reset message. It explains the request, exposes a reset CTA, comm…
- password-reset — The passwordResetTemplate is the canonical password-reset message. It explains the request, exposes a reset CTA, comm…
verification — The verificationTemplate is the standard email-address verification flow message. It greets the recipient, optionally…
- verification — The verificationTemplate is the standard email-address verification flow message. It greets the recipient, optionally…
welcome — The welcomeTemplate is the canonical post-signup onboarding email. It greets the recipient by name, summarises why th…
- welcome — The welcomeTemplate is the canonical post-signup onboarding email. It greets the recipient by name, summarises why th…
theme — Provides the theme tokens consumed by every email component — colours, typography, spacing, branding, border-radius, an…
- theme — Provides the theme tokens consumed by every email component — colours, typography, spacing, branding, border-radius, an…
vnode — Defines the universal VNode primitive — a { tag, attrs, children } triple plus a pure-string HTML renderer — tha…
- vnode — Defines the universal VNode primitive — a { tag, attrs, children } triple plus a pure-string HTML renderer — tha…

What's included

Nine reusable components — EmailLayout, EmailContainer, EmailHeading, EmailText, EmailLink, EmailImage, EmailDivider, EmailButton, EmailFooter.
Five built-in templates — welcomeTemplate, verificationTemplate, passwordResetTemplate, notificationTemplate, invoiceTemplate.
VNode core — h(tag, attrs, children) hyperscript factory and a pure-string renderVNode walker.
Renderer — renderToHtml(template, props, options?) → { html, text, subject } with OTel instrumentation.
Theme system — defaultTheme, createTheme, mergeThemes.
Type-safe registry — TemplateRegistry<TMap> with category / tag / author search.
Fluent builder — TemplateBuilder<TProps> / createTemplateBuilder<TProps>().
Adapter — createEmailMessage(template, props, recipient, options?) returning a plain-object envelope ready for SMTP / SES / SendGrid.
Structured errors — EmailTemplatesError with six EMAIL_TEMPLATES.* codes.

Quick start

import {
  createEmailMessage,
  welcomeTemplate,
} from "@suaveplan/email-templates";

const message = createEmailMessage(
  welcomeTemplate,
  { recipientName: "Jane", ctaUrl: "https://app.example.test/get-started" },
  { to: "jane@example.test", from: "hello@suaveplan.com" },
);

await mailer.send(message);

Architecture

Upstream @suaveplan/email-templates was a React component library rendered via react-dom/server. The port honours the enterprise spec §3 ("Zero browser / Node / React dependencies") by re-implementing the full upstream surface as VNode factories — pure functions returning { tag, attrs, children } triples walked by a single HTML-emitter (renderVNode).

The renderer is the sole point at which child text is HTML-escaped and attributes are serialised. Components emit data; escaping happens once.

Universal

Zero React / DOM / Node-specific dependencies at runtime.
Injectable Clock (@suaveplan/types) for deterministic footer year.
OTel instruments via @opentelemetry/api.
Pure-TypeScript implementation, 100% statement / branch / function / line coverage.

Sub-path exports

@suaveplan/email-templates/vnode, …/theme, …/renderer, …/message, …/template-builder, …/template-registry, …/components, …/templates, …/errors, …/otel — each exposes a focused slice of the surface for tree-shake friendliness.