markuplint

What it does

A Linter for All Markup Languages. - Conformance checking - On Your House Rules - For Designed Structures - Set for each the CSS Selector - Supporting Template Engine This is an open-source module for JavaScript. You can use it for free under the MIT license.

Peace of mind in your markup. An HTML linter for all markup developers.

Valid markup is the foundation of a reliable web. Markuplint checks your HTML against the HTML Standard, WAI-ARIA, and other specifications — catching errors that browsers silently ignore but assistive technologies and search engines may not. Enforce your project's coding standards beyond what specs require. Configure rules for accessibility, security, performance, and naming conventions — making your team's agreements machine-checkable. Validate that components are used correctly within your design system. Markuplint checks attributes, properties, and parent-child relationships of elements — keeping your component contracts intact. Apply rules to specific elements using CSS Selectors,…from markuplint.dev

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  Lint Your Markdown with ESLintJun 2026 · github.com · ▲14

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  (spoiler: its XSLT) I've been working on a little demo for how to avoid copy-pasting header/footer boilerplate on a simple static webpage. My goal is to approximate the experience of Jekyll/Hugo but eliminate the need for a build step before publishing. This demo shows how to get basic templating features with XSL so you could write a blog post which looks like My Article some content hello hello Some properties which set this approach apart from other methods: - no build step (no need to setup Jekyll on the client or configure Github/Gitlab actions) - works on any webserver…

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