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HTML Validator VS Koa11y

Compare HTML Validator VS Koa11y and see what are their differences

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HTML Validator logo HTML Validator

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla.

Koa11y logo Koa11y

Automatically detect accessibility (a11y) issues on webpages
  • HTML Validator Landing page
    Landing page //
    2019-06-07
  • Koa11y Landing page
    Landing page //
    2019-04-29

HTML Validator videos

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Let's have a look at CSE HTML Validator Lite

More videos:

  • Demo - CSE HTML Validator Professional quick demo

Koa11y videos

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Koa11y: Find Accessibility Issues on your Site

Category Popularity

0-100% (relative to HTML Validator and Koa11y)

HTML Validator

Koa11y

SEO
43 43%
SEO
57% 57
Developer Tools
0 0%
Developer Tools
100% 100
SEO Tools
100 100%
SEO Tools
0% 0
Website Monitoring
100 100%
Website Monitoring
0% 0

User comments

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What are some alternatives?

When comparing HTML Validator and Koa11y, you can also consider the following products

Total Validator - Total Validator can check your website to help ensure that it is accessible, uses valid HTML and CSS, has no broken links, and is free from spelling mistakes.

Nibbler - Free tool for testing how good your website is, and what you can do to improve it. Check accessibility, SEO, social media, compliance and more.

W3C Markup Validation Service - Validates HTML markup of web pages, one at a time.

tota11y - An accessibility visualization toolkit from Khan Academy

Rocket Validator - Site-wide Accessibility and HTML validation made easy. With a single click, Rocket Validator will check thousands of web pages on your site for Accessibility and HTML conformance, producing a detailed, actionable report on seconds.

Accessible Metrics - Digital Governance

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