I often use Google to check the spelling of a single word. If it is a recognized word, a definition link will display in the upper right-hand corner. For spell checking paragraphs or longer documents when you do not have access to a modern word processing, there are several sites that provide free online spell checking. Here are two: : SpellCheck.net and Jspell.
Cite This Page
Feldman, Barbara. "Online Spell Checks." Surfnetkids. Feldman Publishing. 24 Jan. 2006. Web. 30 Nov. 2014. <http://www.surfnetkids.com/tech/699/online-spell-checks/ >.