Nuspell is a fast and safe spelling checker software program. It is designed for languages with rich morphology and complex word compounding. Nuspell is written in modern C++ and it supports Hunspell dictionaries. Main features of Nuspell spelling checker: - Provides software library and command-line tool. - Suggests high-quality spelling corrections. - Backward compatibility with Hunspell dictionary file format. - Up to 3.5 times faster than Hunspell. - Full Unicode support backed by ICU. - Twofold affix stripping (for agglutinative languages, like Azeri, Basque, Estonian, Finnish, Hungarian, Turkish, etc.). - Supports complex compounds (for example, Hungarian, German and Dutch). - Supports advanced features, for example: special casing rules (Turkish dotted i or German sharp s), conditional affixes, circumfixes, fogemorphemes, forbidden words, pseudoroots and homonyms. - Free and open source software. Licensed under GNU LGPL v3 or later.