ember-template-lint

Linter for Ember or Handlebars templates, version 7.9.3. Released regularly with monthly minor/patch updates. It provides over 100 built-in rules covering accessibility, styling, and best practices, with presets for recommended, stylistic, and a11y. Key differentiator: first-class integration with Ember projects, auto-fix support, and plugin architecture. Unlike generic HTML linters, it understands Handlebars syntax and Ember-specific patterns like components and modifiers. Requires Node ^18.18.0 || >=20.9.0.