HTML Inspector is a browser-based JavaScript code quality tool for checking markup against customizable rules. It was designed to sit between strict W3C validation and having no markup standards at all. The tool can detect questionable HTML patterns, enforce team conventions, and help developers catch structural problems before they become harder to maintain. Its rules are opinionated by default but can be customized or extended to match a team’s own standards. HTML Inspector runs directly in the browser, which makes it useful for inspecting live pages during development. Although the project is archived, it remains a clear example of configurable client-side markup auditing.

Features

  • Browser-based HTML quality inspection
  • Customizable rule system
  • Extensible checks for team conventions
  • Markup validation without strict W3C rigidity
  • JavaScript-based runtime inspection
  • Useful for legacy HTML auditing and education

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Categories

HTML/XHTML

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HTML Inspector Web Site

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Additional Project Details

Programming Language

JavaScript

Related Categories

JavaScript HTML XHTML

Registered

2026-05-22