(X)HTML5 Checker by Francesco De Stefano
A small extension to validate the markup of current webpage
81 Users81 Users
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About this extension
WebExtension to validate the webpage's html using https://validator.w3.org/ web service APIs. 
- It can be used while developing the website to check for errors and maintain standards in your code.
- It sends the current webpage’s HTML to the https://validator.w3.org/nu/ web service in order to check it for errors.
- You can detect all the errors, in a popup list, to facilitate the refactoring of the code, the error part is highlighted and the source code is also displayed where the error is found.
Source code - https://ulmdevice.altervista.org/htmlValidator/
- It can be used while developing the website to check for errors and maintain standards in your code.
- It sends the current webpage’s HTML to the https://validator.w3.org/nu/ web service in order to check it for errors.
- You can detect all the errors, in a popup list, to facilitate the refactoring of the code, the error part is highlighted and the source code is also displayed where the error is found.
Source code - https://ulmdevice.altervista.org/htmlValidator/
Rated 3.3 by 3 reviewers
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More information
- Add-on Links
 - Version
 - 0.0.4resigned1
 - Size
 - 30.55 kB
 - Last updated
 - 2 years ago (26 Apr 2024)
 - Related Categories
 - Licence
 - Mozilla Public Licence 2.0
 - Version History
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The developer of this extension asks that you help support its continued development by making a small contribution.