ExactWord 

ExactWord (formerly YTSEditor) is a word processor editor with Rich Text/Plain Text editing, Spell Check, ActiveSpell, Thesaurus, Dictionary, Paragraph Options, Format Styles. Dictionary Update Wizard automates adding more spelling dictionaries.
text editor rich text spell check spell checker spellcheck word processor spell checking software free dictionaries thesaurus thesauri spanish british danish dutch

Spell Magic 

Spell check text, paragraph or document from any application, e-mail, editor or database; system-wide on-the-fly spell check; over 25 languages, medical, legal. Improved Compatibility Mode for MS Word, Internet Explorer, Outlook Express and more.
spell check spell checker spellcheck spell checking software free dictionaries sap siebel oracle medical spelling spanish british danish dutch english

EditExt 

EditExt (formerly EditorPro) is an advanced multi-tabbed editor for programmers & text editing, with spell check, syntax highlighting for 9 different programming languages. Dictionary Update Wizard automates adding more spelling dictionaries.
text editor syntax highlighting spell check word processing thesaurus spanish british danish dutch english french german italian norwegian

IPePad 

Lightweight, yet highly functional text editor. Has several powerful features such as HTML compression, spell-checker, flesch-kincaid readabilty calculator, encryption, vulgar word censor, and several formating options.
pdf text html editor spell check flesch kincaid dirty word vulgar censor