Orangoo.com let’s you spell check online in 28 languages. It doesn’t log what text you input, doesn’t matter what internet machine you are using, and the code is free so you can use it on your website!
From the website:
“Spell check in 28 languages: Bahasa Indonesia, ÄŒeÅ¡tina, Dansk, Deutsch, ελληνικά, English, Español, Eesti keel, Français, עִבְרִית, हिंदी, Hrvatski, Italiano, LatvieÅ¡u, Lietuvių, kalba, Magyar, Nederlands, Norsk, Polski, Português, Română, SlovenÅ¡Äina, SlovenÄina, Suomi, Svenska, Türkçe and РУССКИЙ!”