Kingsquare HTML Validator

A HTML5 validation library, using a JavaScript port of the excellent TIDY library
What is Kingsquare HTML Validator?
Kingsquare HTML Validator is a Chrome extension that provides an offline HTML5 validation library. Using a JavaScript port of the exceptionally reputed TIDY library, it eliminates the requirement for remote services to validate your HTML(5). This is the first of its kind that allows HTML validation to go offline in Chrome.

Extension stats

Users: 1,000+
Rating: 2.86 (36)
Version: 1.4 (Last updated: 2012-08-28)
Creation date: 2012-08-28
Risk impact: Moderate risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
Permissions:
  • http://*/*
Size: 1.05M
URLs: Website

Other platforms

Not available on Firefox
Not available on Edge
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Extension summary

This extension brings the the TIDY HTML Validation library to your browser. You will no longer need remote services to validate your HTML(5). This is the first offline HTML validator for Chrome.

For more information on the project, see http://www.kingsquare.nl/html-validator

** PLEASE NOTE **

Please restart your browser after installing the extension.

Open the development tools panel to activate the validator. Every page will get validated automatically, check the flag at the end of your address bar to see the current status. See the last tab of the development tools to get a full report.

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Incorporated into developer tools
  • Works offline
  • Provides validation by line number
  • Great for error messages
  • Useful for identifying errors
Cons
  • Output format is not user-friendly
  • False warnings and spurious errors
  • Does not handle UTF-8 encoded characters well
  • Requires reloads to validate local files
  • Needs improvement in error messages
Most mentioned
  • False warnings and spurious errors
  • Output format is horrible
  • Incorporated into developer tools
  • Requires reload to validate
  • Needs more context in warnings and errors
Recent reviews
Might like it if I could get it to do something. Does not seem to check anything.
by Patrick Gallagher, 2019-02-28

Why does this module not qualified the display video's at the nu.nl?
by Lodewijk Abrahams, 2017-11-27

too finicky Should just show errors
by Paul Brown, 2016-06-23
View all user reviews

Extension safety

Risk impact

Kingsquare HTML Validator requires a few sensitive permissions. Exercise caution before installing.

Risk likelihood

Kingsquare HTML Validator is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this extension.

Upgrade to see risk analysis details

Promo images

Kingsquare HTML Validator small promo image
Small promo image

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