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HTML Validator icon

HTML Validator

Add HTML Validator in Developer Tools

Users30KCurrent public install base
Rating3.5Store average score
Reviews37Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
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User Growth Over Time

30K30K30K30K30K2026年7月15日2026年7月18日2026年7月21日Latest: 30K
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7-day rating change

Start
3.46
Latest
3.46
7-day rating change
0.00
3.363.413.463.513.562026年7月15日2026年7月18日2026年7月21日Latest: 3.46
2026年7月15日2026年7月21日
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1-day growthFlat
00%
7-day growthFlat
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30-day growthFlat
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Technical snapshot

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Version0.9.9.8
ManifestV3
Size2.5MiB
Languages1English (United States)
Published
Store updated
Last crawled
English (United States)
Overview

Product summary

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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.

Reviews

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Store average score3.5Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.3Average computed only from synced review bodies
Reviews with text20Synced review bodies
Total ratings / reviews37Chrome Web Store public rating/review count

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