HTML-validate is an Offline HTML5 validator.
It validates either a full document or a smaller (incomplete) template, e.g. from an AngularJS or Vue.js component.
This is free and open source software.
Key Features
- Fragments and components:
- In addition to validating plain .html files HTML-validate can also validate sources inside .js components (or any other source) by extracting HTML fragments (transforming).
- Neither .html files or component fragments need to be a complete document (e.g. doctype is not required).
- Transformed sources can also be postprocessed to handle data-bindings from different frameworks, e.g. :id will still be understood the same way id would.
- Offline – Does not upload any data to a remote server, all testing is done locally. Many validators will behind the scene upload the markup to online services such as W3C. HTML-validate performs all validation locally, no markup leaves your machine, providing a faster and more secure response which can easily be integrated with tools and IDEs.
- Strict parsing:
- When rendering a document it is useful to try to correct malformed markup but a validator should be strict. No corrections, assumptions or guessing is done. If the markup is invalid the parser will tell you so.
- By ensuring the markup is strictly valid it reduces the amount of bugs where different browsers autocorrect the markup differently (this is especially true for mobile browsers).
Website: gitlab.com/html-validate/html-validate
Support:
Developer: David Sveningsson
License: MIT License
HTML-validate is written TypeScript. Learn TypeScript 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 |
| markuplint | HTML linter for markup developers |
| LintHTML | HTML5 linter and validator |
| HTML-validate | Offline HTML5 validator |
| jinjalint | Prototype linter |
| HTML ESLint | ESLint plugin for linting HTML files |
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