Following table lists the information about different screen readers:

Information related to the various screen readers

Screen Reader Website Free / Commercial
Screen Access For All (SAFA) http://www.nabdelhi.org/NAB_SAFA.htm (External website that opens in a new window) Free
Non Visual Desktop Access (NVDA) http://www.nvda-project.org/ (External website that opens in a new window) Free
System Access To Go http://www.satogo.com/ (External website that opens in a new window) Free
Thunder http://www.screenreader.net/index.php? pageid=2 (External website that opens in a new window) Free
WebAnywhere http://webanywhere.cs.washington.edu/ wa.php (External website that opens in a new window) Free
Hal http://www.yourdolphin.co.uk/ productdetail.asp?id=5 (External website that opens in a new window) Commercial
JAWS http://www.freedomscientific.com/jaws- hq.asp (External website that opens in a new window) Commercial
Supernova http://www.yourdolphin.co.uk / productdetail.asp ?id=1 (External website that opens in a new window) Commercial
Window-Eyes http://www.gwmicro.com/Window-Eyes/ (External website that opens in a new window) Commercial