NVDA: free and open source screen reader

If you want to see — or, should I say “listen”? — your site with a screen reader, there is a free and open source screen reader called NonVisual Desktop Access (NVDA). What is it?

NonVisual Desktop Access (NVDA) is a free and open source screen reader for the Microsoft Windows operating system. Providing feedback via synthetic speech and Braille, it enables blind or vision impaired people to access computers running Windows for no more cost than a sighted person. Major features include support for over 20 languages and the ability to run entirely from a USB drive with no installation.

Yes, right now it’s only available in Microsoft Windows platform.