LanguageTool
Free proofreading tool for OpenOffice, LibreOffice, Firefox, and Chrome. Also available as a standalone application. Supports about 20 languages (on different levels) and allows customization.
Automatic on-the-fly spell checking. Asutype checks and alerts you to any mistake that you may make while typing both audibly and visually so you can optionally take...
Automatic onthefly spell checking. Asutype checks and alerts you to any mistake that you may make while typing both audibly and visually so you can optionally take immediate action.
spell-checker autotext typing spelling speed-typing
Free proofreading tool for OpenOffice, LibreOffice, Firefox, and Chrome. Also available as a standalone application. Supports about 20 languages (on different levels) and allows customization.
Freemium
Ginger Keyboard is the world’s first smartphone keyboard to offer advanced writing tools, including live as-you-type proofreading, alongside standard and advanced keyboard features like word prediction, autocorrect, emoji and swipe typing.
Freemium Windows Android iPhone Android Tablet iPad Chrome OS
Grammar & Spelling Check; Free Online Proofreading; No Downloads...Allows you to find those pesky mistakes and correct them before your teacher does...
Freemium Web
Spelling checker. Checks HTML, TeX/LaTeX, RTF, and ASCII (plain text). Hotkey spell checking in WordPad, Notepad, Email, browsers, etc.
Free Personal Windows
cocoAspell is Mac OS X interface to Aspell – A more intelligent Ispell – that is being developed by Kevin Atkinson. Aspell is an Open Source spell checker designed to...
Free Open Source Mac OS X
SpellCheckPlus is a grammar checker that finds common spelling errors and grammatical mistakes in English.
Freemium Web