2012
Hunspell: open source spell checking, stemming, morphological analysis and generation under GPL, LGPL or MPL licenses
by jdrsantos & 1 other
Hunspell is the spell checker of LibreOffice, OpenOffice.org and Mozilla Firefox 3
2010
2009
2008
GNU Aspell
by ycc2106 & 1 other
GNU Aspell is a Free and Open Source spell checker designed to eventually replace Ispell
2007
Spellcorrector - Peterbe.com (Peter Bengtsson on Python, Zope, Kung Fu, London and photos)
by greut
the spell checker of Peter Norvig revisited.
2006
Orangoo Spell Check - Online spell checking
by MaoTseTongue & 39 others
Correcteur orthographique en ligne. Orangoo connaît 27 langues différentes dont l'anglais, le français, l'allemand et bien d'autres.
AJAX based spellchecker demo
by ycc2106 & 1 other
Suggestions are offered via AJAX powered links, just like done by GMail. While this is by no means anything more than a demo, it is still surprising that only 67 lines of code, plus some HTML templates were required.
