HTML Validator

Add HTML Validator in Developer Tools

HTML Validator Extension for Chrome

'HTML Validator' is a Chrome extension based on HTML Tidy algorithm originally developed by W3C. It enables validation of your HTML codes right inside the developer tools of your Chrome browser. It identifies HTML errors and categorizes them for easy resolution. With the 'Clean up' feature, it can even offer a version of your HTML page free from errors. All these tasks are performed locally, ensuring your HTML codes are not sent to any third-party server.

Download

Extension stats

By: https://gueury.com

Users: 40,000+

Rating: 3.35

(37)

Version: 0.9.9.8 (Last updated: 2022-12-28)

Creation date: 2018-05-28

Risk impact: High risk impact

Risk likelihood:

Very low risk likelihood

Manifest version: 3

Permissions:

storage
activeTab
clipboardWrite
webNavigation
scripting

Host permissions:

<all_urls>

Size: 2.62M

Email: mg*****@skynet.be

URLs: Website

Ranking

# 4,565 ▲ 32

Other rankings

#652 in Developer Tools ▲ 1 #1 in html keyword 33 #31 in error keyword 18 ▲ 2 #73 in algorithm keyword 2 ▲ 3 #212 in developer keyword 59 ▲ 7

Other platforms

HTML Code Play (v10.26)

3.94

(6,600) 1,227,135+

Not available on Firefox

Not available on Edge

Want to check extension ranking and stats more quickly for other Chrome extensions? Install Chrome-Stats extension to view Chrome-Stats data as you browse the Chrome Web Store.

Extension summary

Analyze keywords

This is the of HTML Validator extension for Chrome Manifest V3. It checks the code, syntax, of your HTML 5 pages.

HTML Validator for Chrome is a browser extension that adds HTML validation inside Developer Tools of Chrome. The number of errors of a HTML page is seen with an icon in the browser status bar. The details is seen in the developer tools.

The extension is based on HTML Tidy. The algorithm was originally developed by the Web Consortium W3C. The algorithm is embedded inside your browser and makes the validation locally on your machine, without sending HTML to a third party server.

HTML Tidy is a helpful program that tries to help people to correct their HTML errors. It finds HTML errors and classifies them in 3 categories:

errors: HTML errors that Tidy cannot fix or understand.
warnings: HTML errors that Tidy can fix automatically
(optional) accessibility warnings: HTML warnings for the 3 priority levels defined in W3c WAI

There is also an automatic "Clean up" button that will do his best to propose you a cleaned version of your page, without errors.

For any question, mail me at [email protected] or log a bug in:

https://gitlab.com/mgueury/html_validator/issues

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

Integrates well into the developer window
Can see the source directly from the HTML validator tab in dev tools
Helps identify errors and inaccuracies in HTML

Cons

Does not refresh itself after a page reload
Plugin crashes frequently and is barely usable
Provides false errors or warnings
Requires access through Developer Tools instead of displaying validation automatically

Most mentioned

Issues with refreshing and updating
Plugin instability and crashing
False positives in error reporting

User reviews

Extension not maintained ! Unable to refresh the analysis . the "HTML Validator" tabs keeps always the old release , even when i refresh the page CTLR+R. This important issue was logged 3 years ago ! (see #61 in gitlab issues)

Reda Benh, 2024-10-04

It does not refresh itself after a page reload :(

Attila Skyler Magyari, 2024-06-29

Pretty decent, but it doesn't seem to be fully HTML5 compliant. It didn't like me using "checked" instead of checked="checked", both of which are valid for HTML5.