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HTML Validator Alternatives

HTML Validator is described as 'Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon in the status bar when browsing. The details of the errors are seen when looking the HTML source of the page' and is an app in the web browsers category. There are six alternatives to HTML Validator for a variety of platforms, including Online / Web-based, Mac, Windows, Linux and Android. The best alternative is Scrutiny. It's not free, so if you're looking for a free alternative, you could try W3C Markup Validation Service or Total Validator. Other great apps like HTML Validator are Screpy, mailmouse and Rocket Validator.

HTML Validator alternatives are mainly SEO Tools but may also be Website Monitors or Code Editors. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of HTML Validator.
This page was last updated Jun 27, 2022
  • FreeProprietary
  • Mac
  • Windows
  • Linux
  • Firefox

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML...

Learn more about HTML Validator

  1. Scrutiny

    • Mac

    If you need more features than only a website link checker - such as XML sitemap (conforming to the standard protocol), html validity, essential SEO checks such as page title, headings, meta description and keywords - then try Scrutiny.

  2. Screpy is an AI-based web analysis tool that can analyze all pages of your websites in one dashboard and monitor them with your team. It's powered by Lighthouse and it also includes some different analysis tools (SEO, SERP, W3C, Uptime, etc).



  3. W3C Markup Validation Service

    • FreeOpen Source
    • Online

    Validates HTML markup of web pages, one at a time.

  4. Total Validator

    • FreemiumProprietary
    • Mac
    • Windows
    • Linux

    Total Validator is an HTML validator, an accessibility validator, a spell checker, and a broken links checker all rolled into one tool, allowing one-click validation of your website.

  5. mailmouse

    • FreeProprietary
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad

    The validation process used, is based on email development experience and good practices developed by leading email marketing agencies and email services in this field.

    No screenshots yet


  6. Rocket Validator

    • Online

    HTML markup validation is a key factor in web development - it ensures your sites conform to the latest W3C standards and that it's free from errors like unclosed tags or invalid attributes.

Showing 6 of 6 alternatives