lh5val - AIO/SEO & HTML5 Structural Validator for localhost

🚀 Revolutionize Your Local Web Audit in Seconds!

Are you tired of hunting through messy code to find why your local site isn't rendering correctly, or missing crucial SEO tags that search engines and AI models expect? 

"lh5val" (AIO/SEO & HTML5 Structure Checker) is a lightweight, professional-grade powerhouse designed for modern developers, educators, and students who need to audit pages directly on localhost—without the hassle of online uploads or complex environment setups.

Powered by the official "Nu Html Checker" (the same core engine used by W3C) and integrated with a custom jsoup-driven structural core, lh5val brings world-class semantic and structural diagnostics right to your local workstation.

✨ New in Version 0.02: Major Evolution!

• Semantic AIO & SEO Audit: Automatically verifies your document structure to ensure maximum compatibility with modern search engines and AI search crawlers.
• Dynamic Multi-Color Console: Beautiful, high-contrast text color-coding—Errors (Red), Warnings (Yellow), and Info (Blue) are separated instantly for stress-free debugging.
• Line Position Markers: Precise source code line numbers are printed in clean Green right below each issue, letting you locate and fix bugs instantly.

💎 Key Features

• Localhost Ready: Seamlessly handles http://localhost/ addresses, including local PHP, HTML, and dynamic local environments.
• Zero Setup (Self-Contained): Comes bundled with its own isolated Java Runtime. Just extract and run—no Java installation or system path configuration required!
• Traditional 22px High-Readability UI: Features a massive 22px console font, specifically optimized for screen sharing during coding sessions, coding bootcamps, or live workshops.
• Longevity-First Design: Built as a fully self-contained Windows executable with minimal dependencies. It is designed to work reliably for years to come.
• Ignore Info Filter: A dedicated checkbox allows you to hide verbose informational logs and focus entirely on critical errors and warnings.

English Manual included. 日本語マニュアル同梱。

🛠️ How to Use

1. Launch "lh5val.exe".
2. Paste your local URL (e.g., http://localhost/my-project/index.php).
3. Hit Enter or click the "Validate" button.
4.  Watch the multi-color console stream your audit results in real-time. Fix your code, hit Validate again, and achieve semantic perfection!