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.

Download

Stats

By: https://kingsquare.nl

View on Chrome Web Store

Users: 2,000+

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

Email: ki*****@king-management.nl

URLs: Website

Stats date:

Chrome-Stats Rank

# 19636 ▼ 127

Other rankings

#2911 in Developer Tools ▲ 2 #56 in html keyword 40 ▲ 16

Other platforms

Not available on Firefox

Not available on Edge

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Summary

Analyze keywords

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

User reviews summary

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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

Works offline
Integrated into developer tools
Does not depend on external services
Outputs validation by line number

Cons

Output format is unappealing
Does not work on AJAX sites
Error messages are not useful
False UTF8 errors
Does not update validation for local files unless reload an unrelated non-local page

Most mentioned

Error messages needs improvements
Doesn't handle UTF-8 encoded characters well
Difficulty in using or getting it to work
Issues with validation on local files

Recent reviews

Might like it if I could get it to do something. Does not seem to check anything.

Patrick Gallagher, 2019-02-28

Why does this module not qualified the display video's at the nu.nl?

Lodewijk Abrahams, 2017-11-27

too finicky Should just show errors

Paul Brown, 2016-06-23

View all user reviews

Safety

Risk impact

Kingsquare HTML Validator may not be safe to use and it requires some risky permissions. Exercise caution when installing this extension. Review carefully before installing.