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HTML Validator icon

HTML Validator

Employ an HTML Validator online to swiftly validate HTML code. Leverage our syntax check verifier as an effective HTML error checker

Users2KCurrent public install base
Rating4.0Store average score
Reviews6Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview

HTML Validator Media preview

3 assets
Trend

User growth trend

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User Growth Over Time

2K2K2K2K2K2026年7月15日2026年7月19日2026年7月21日Latest: 2K
Rating trend

7-day rating trend

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7-day rating change

Start
4.00
Latest
4.00
7-day rating change
0.00
3.903.954.004.054.102026年7月15日2026年7月19日2026年7月21日Latest: 4.00
2026年7月15日2026年7月21日
Growth overview

Daily, weekly, and monthly growth

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1-day growthNo data
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7-day growthFlat
00%
30-day growthNo data
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Technical snapshot

Version, languages, and crawl freshness

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Version1.0.0.5
ManifestV3
Size2.7MiB
Languages52Deutsch / English / Filipino +49
Published
Store updated
Last crawled
DeutschEnglishFilipinoIndonesiaKiswahiliMelayuNederlandsTiếng ViệtTürkçecatalàdanskeesti
Overview

Product summary

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🧩 This Chrome extension provides a comprehensive set of features designed as an HTML checker to identify in code HTML error checker. With a user-friendly interface, it allows you to conduct validate HTML right from your browser, simplifying your workflow and enhancing productivity.

❗ With the extension it is possible:

1️⃣ to do Real-time;

2️⃣ to scan;

3️⃣ check W3C compliance;

4️⃣ check HT ML for errors;

Reviews

Recent review snapshot

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Store average score4.0Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.0Average computed only from synced review bodies below
Reviews with text6Synced review bodies
Total ratings / reviews6Chrome Web Store public rating/review count

Store average score: 4.0. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★
4
4★
0
3★
1
2★
0
1★
1
Michael Tangen2025年3月17日
3

Works OK, but is not up-to-date. One example I ran into, the <search> tag was marked as invalid HTML but on the contrary is. https://www.w3schools.com/tags/tag_search.asp

Version 1.0.0.5Language en
Master SEO2025年3月10日
1

Валидатор неадекватен. 1. Неудобно запускать 2. Не скопировать текст ошибки 3. Неверно определяет ошибки. Например: - ругается на пустые теги, заполняемые на js - говорит, что атрибут as deprecated, в то время, когда он, наоборот, обязателен для preload И т.д.

Version 1.0.0.5Language ru
jefhefjn2024年7月31日
5

I would say that,HTML Validator extension is very important in this world.However, Thank

Version 1.0.0.5Language en
0 helpful · 1 not helpful
Dagose2024年7月19日
5

t's very convenient to check HTML for errors in the browser, This program has helped out many times. I advise everyone to have a good and positive day.

Version 1.0.0.5Language en
Роман Кунаков2024年7月17日
5

A useful and very necessary extension for finding errors in HTML, very easy to use even for a beginner.

Version 1.0.0.5Language en
0 helpful · 1 not helpful
Виктор Дмитриевич2024年7月15日
5

Расширение помогает HTML Validator работать в темной теме, где глаза отдыхают. Рекомендую!

Version 1.0.0.5Language ru
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