Htmler · Type-safe HTML from Dart

01 · Text

Typography elements

Headings, formatting, inline code, and accent text — all composed as Dart tags.

Heading hierarchy

H1 — Main title

H2 — Section

H3 — Subsection

H4 — Minor

Perfect semantics for SEO & accessibility.

Text formatting

Mix bold, italic, and underlined freely.

Inline code: htmler.render()

Small text adds footnote-level context.

Accents & badges

Use $Span for highlighted text or outlined badges.

Typography is the foundation of great design.

Pro tip: All these elements are pure Dart — instant type-safety and full IDE autocomplete.

02 · Collections

Lists & navigation

Ordered, unordered, and richly styled list items with badges and pills.

Unordered list

First item1
Second item2
Third itemNEW
Fourth item4

Ordered list

Setup your environment
Import Htmler library
Compose your tags
Render beautiful HTML

03 · Inputs

Interactive form elements

Inputs, selects, textareas, range sliders — every form widget you need.

Pro tip: Required, pattern, and type attributes give you HTML5 validation for free.

04 · Data

Tables

Sortable, striped, responsive tables — straight from $Table builders.

Popular programming languages, 2024

Source: Stack Overflow Developer Survey

#	Language	Popularity	Primary use	Year
1	JavaScript	69.70%	Web development	1995
2	Python	51.80%	Data science, AI	1991
3	Dart	6.02%	Flutter, web apps	2011
4	Java	40.20%	Enterprise, Android	1995

05 · Visual

Media & visual elements

Progress bars, collapsible details, and interactive widgets.

Skill levels

HTML90%

CSS85%

Dart95%

Disclosure widgets

What is Htmler?

Htmler lets you build entire HTML documents with composable Dart tag builders — no string templates, full type safety, perfect IDE support.

Semantic HTML by default
Accessibility-friendly
Zero runtime dependencies

Why type-safe HTML?

Catch typos at compile-time, refactor with confidence, and let your IDE autocomplete the entire HTML5 vocabulary.

06 · Snippets

Code examples

How to compose Htmler tags into reusable Dart UI.

htmler_controller.dart

// Creating a button with Htmler
$Button(attrs: {
  'type': 'submit',
  'class': 'btn btn-primary',
}, children: [
  $Text('Click me!')
])

// Creating a card layout
$Div(attrs: {'class': 'card'}, children: [
  $Div(attrs: {'class': 'card-body'}, children: [
    $H5(children: [$Text('Card title')]),
    $P(children: [$Text('Card content goes here…')]),
  ]),
])

07 · Dynamic

Jinja integration

Mix server-side variables and conditionals into your Dart-built HTML.

Server variables

language → en

year → 2026

Conditional rendering

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Type-safe HTML, written in Dart.