Hunspell is the spell checker of LibreOffice, OpenOffice.org, Mozilla Firefox, Google Chrome, and it is also used by proprietary software packages, like Mac OS X and InDesign.
Cost / License
- Free
- Open Source
Platforms
- Online
Nuspell is described as '🖋? Fast and safe spellchecking C++ library' and is an app. There are six alternatives to Nuspell for a variety of platforms, including Linux, Windows, Web-based, iPhone and iPad apps. The best Nuspell alternative is Hunspell, which is both free and Open Source. Other great apps like Nuspell are Druide Antidote, GNU Aspell, Enchant and ispell.
Hunspell is the spell checker of LibreOffice, OpenOffice.org, Mozilla Firefox, Google Chrome, and it is also used by proprietary software packages, like Mac OS X and InDesign.
Whether you’re writing a letter or an email, a simple click of a button will open some of the most comprehensive and useful language resources ever created.



GNU Aspell, usually called just Aspell, is a free software spell checker designed to replace Ispell. It is the standard spell checker for the GNU software system. It also compiles for other Unix-like operating systems and Windows.
Ispell is a program that helps you to correct spelling and typographical errors in a file. When presented with a word that is not in the dictionary, ispell attempts to find near misses that might include the word you meant.
On the surface, Enchant appears to be a generic spell checking library. You can request dictionaries from it, ask if a word is correctly spelled, get corrections for a misspelled word, etc...