Excellent spell checks, the best I have found. Good for multi-lingual people who need to check text on more than 3 languages that they speak (I work in 4 languages and other competing spell checkers only have 3 active spell checkers). Moreover it is cross platform as I like using Firefox but often also use Edge for work.

nice extension, good for stickups

Muito Bom! Obrigado por esta extensão, vem me ajudando bastante.

Por acaso teria uma versão similar para usar no Atom? (o Atom é uma IDE, para programação) queria ter feedbacks da escrita em tempo real durante a programação

Awesome grammar and spell checker.

best add-ons but i wish if it was totally free

Je trouve cette outil très très cool merci de l'avoir créer

I love this spell and style checker! You can run it with your own local instance of of the LanguageTool back-end and enjoy a privacy-first handy little helper that rivals grammarly. Absolutely wonderful! You can integrate it into all major browsers and even Microsoft Office, although for that I think you need to turn on some undesired setting. Not sure yet.

Really lovely tool, been running it for months now with my own back-end server, definitely a "base install addon install". Also love that setup is very very easy and that it's got very good multi-language handling. No need to set your text as this or that language. Microsoft, take notes! (Especially in One Note... can't even set a language per-document... I digress :D)