(X)HTML5 Checker by Francesco De Stefano

A small extension to validate the markup of current webpage

3.3 (3 reviews)

93 Users

You’ll need Firefox to use this extension

Download Firefox and get the extension

Download file

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/

Rated 3.3 by 3 reviewers

Required permissions: