Spell - Deep Learning and AI accessible to everyone
Reverse Dictionary - Describe a concept and get back a list of words
Hunspell - Hunspell is the spell checker of LibreOffice, OpenOffice.
Dictionary Anywhere - Dictionary Anywhere is an open-source and easy-to-use browser extension for Mozilla Firefox and Google Chrome that allows you to check definitions easily while browsing the web.
Spell It Out - Spelling out tech acronyms so you can be in the know.
Writefull Thesaurus - A Google Docs add-on that uses AI to give you synonyms