Any tool recommendation for WCAG 2.0 validation? [closed]

Question

I believe everyone now a days is working hard to make web pages WCAG 2.0 compliant. Can you share any good tool for the same that you have come across?

Here are some good tools that I came across-

1. http://www.powermapper.com/products/sortsite/index.htm

Advantages:

1. It does WCAG 2.0, WCAG 1.0, browser compatibility and many other checks
2. Low cost

Disadvantage:

1. it seems it doesn't have command line API.(as per my initial evaluation)
2. Web mode doesn't support HTML upload

2. http://achecker.ca/checker/index.php

Advantages:

1. Free!!!
2. Supports WCAG 2.0
3. Has web service API

Disadvantages:

1. Web service API doesn't support HTML file upload. It expects that the HTML file is deployed somewhere on web

Answer 1

I used to work for a company that produces a free Chrome and Firefox extension that tests against accessibility standards including WCAG 2.0, based on an open source accessibility testing library.

Slightly nervous as this might be viewed as promotion but I don't work there any more. I will delete this answer if this is frowned upon.

Axe Chrome Extension

Axe Firefox Extension

axe-core Github Repository