W3C Markup Validation Service

Reviews and ratings

• thisismynickname says:
  Rating: 1

  Not working with offline pages :-(

  Feb. 5, 2016 - Version 2.0
• revalenz says:
  Rating: 3

  Popup for results is very uncomfortable, because it closes when it loses focus. Would be better if they open in a new tab.

  Jan. 10, 2016 - Version 2.0
• adrin13 says:
  Rating: 1

  Not working with offline pages :-(

  July 31, 2015 - Version 1.1
• ua-topan says:
  Rating: 2

  Not working with offline pages :-(

  July 21, 2015 - Version 1.1
• voltball says:
  Rating: 2

  Although I appreciate the effort, this plugin can't replace the validation functionality in Opera Presto. It's listed as a development tool, but it can only validate a page from public URI, not from current source code or DOM in a development environment.

  This means it will only validate my code:
  - if it is in a public accessible production environment, not a closed development environment
  - AND if it is not secured over HTTPS
  - AND if it's not secured by a login

  As a developer I want to validate dynamically generated code in a secured, closed development environment. Opera <= 12.17 gives me that. Unfortunately this plugin cannot.

  I like that someone took the time and effort to make this plugin, however I can't easily use it as a development tool.

  If I view source (view-source:https://etc...) the validator icon is still visible but doesn't seem to do anything very useful. It pops up a box with the text "Click on this extension when you are on a page you would like www.google.com."

  Instead of printing that text, it'd be quite useful if the view-source code was uploaded to W3C. Or at least it could open the W3C page at http://validator.w3.org/#validate_by_input and we could manually copy and paste using ctrl+a, ctrl+v, ctrl+p to validate it from there.

  July 20, 2015 - Version 1.1
• alien-on-earth says:
  Rating: 4

  Doesn't work for my own things, though.

  Es bien.

  May 21, 2015 - Version 1.1
• rabindrakumarkar says:
  Rating: 5

  thanks

  April 22, 2015 - Version 1.1
• gfrex says:
  Rating: 3

  Works on publicly-available pages only. (No local pages and no password-protected pages.) Would be nice to have it work like Opera 12 and send the HTML code itself instead of just an URL.

  Dec. 17, 2013 - Version 1.1
• sunga41 says:
  Rating: 5

  yes.

  Sept. 12, 2013 - Version 1.1
• blackcoder says:
  Rating: 4

  Nice, but doesn't work on html-files located on my PC and opened in Opera.

  Sept. 6, 2013 - Version 1.1