https://larousse.fr/ - The ultimate dictionary. Includes synonyms and conjugation.
http://bescherelle.com/ - This website provides a comprehensive and detailed overview of french conjugation, and includes a variety of games and quizzes at different levels. It also has a conjugation generator which details every tense, form and ending for the verb typed in the search bar.
https://www.francaisfacile.com/ - a website that helps you learn and practise conjugation and grammar through exercises of various difficulty. It’s good for all levels from beginner to advanced.
http://parlons-francais.tv5monde.com/webdocumentaires-pour-apprendre-le-francais/p-1-lg0-Accueil.htm - helps you learn french through videos, workshops and games.
http://www.bbc.co.uk/languages/french/ - has a wide array of media and tools to help you learn french from french news, TV and radio to vocabulary exercises, grammar, and even free lessons and courses online.
https://bibliothequenumerique.tv5monde.com/ - library of books that allows you to download pdf versions of any book you search for. It’s entirely free and wonderful for literature.
https://www.herodote.net/ - website dedicated to french history which includes articles, timelines, news etc.