Enchant aims to provide a simple but comprehensive abstraction for dealing
with different spell checking libraries in a consistent way. A client, such
as a text editor or word processor, need not know anything about a specific
spell-checker, and since all back-ends are plugins, new spell-checkers can
be added without needing any change to the program using Enchant.

Enchant can be configured by the user, who can even add spell-checker
plugins if desired.

WWW: https://abiword.github.io/enchant/