The Nu Html Checker (vnu) checks HTML, CSS and SVG for syntax errors, conformance problems and other unintended mistakes.
It can check individual files, entire directories and URLs from the command line. vnu can also run as a local HTTP service, exposing a REST API that lets editors, build systems and other applications submit documents for validation.
The project provides self-contained Linux binaries with an embedded Java runtime, as well as portable JAR and WAR packages. The JAR can be used directly from the command line, while the WAR package is intended for deployment in a servlet container. :chatgpt-content-reference{index=”0″}
This is free and open source software.
Features include:
- Checks HTML, CSS and SVG documents.
- Processes individual files, directories and URLs.
- Batch checking from the command line.
- Runs as a standalone HTTP validation service.
- REST API for integration with other applications and development workflows.
- Can send documents to either a local or remote checker service.
- Self-contained Linux binaries include a Java runtime.
- Portable JAR package for systems with Java installed.
- WAR package for deployment with servlet containers such as Tomcat.
- Can be embedded in Java applications and integrated with Maven or Gradle projects.
Website: github.com/validator/validator
Support:
Developer: Mozilla Foundation
License: MIT License
v.Nu is written in Java. Learn Java with our recommended free books and free tutorials.
Related Software
| HTML Linters | |
|---|---|
| HTMLHint | Static code analysis tool |
| v.Nu | Catch mistakes in HTML, CSS and SVG |
| SuperHTML | HTML validator, formatter and language server with editor integration |
| djLint | Supports Jinja, Django, Handlebars and related template languages |
| markuplint | HTML linter for markup developers |
| LintHTML | HTML5 linter and validator |
| HTML-validate | Offline HTML5 validator |
| HTML ESLint | ESLint plugin for linting HTML files |
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 Explore our carefully curated directory of recommended free and open source software, covering every major software category.The directory forms part of our extensive collection of articles for Linux enthusiasts. It includes hundreds of detailed reviews, together with free and open source alternatives to proprietary software from companies such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. LinuxLinks also covers interesting projects worth exploring, Linux-compatible hardware, free programming books and tutorials, and much more. Know a useful free and open source Linux application that we haven’t covered? Tell us about it using our submission form. |
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