Profanity filter is a BeamMP plugin based on Word Buster, a filter for Garry's Mod, it censors "bad words" with the character of your choice. It uses the List-of-Dirty-Naughty-Obscene-and-Otherwise-Bad-Words (License) which contains more than 350 english words and then converts them into patterns so that it can catch most variants of the banned words.
Click Download zip, put the profanityFilter-master folder in your Resources/Server folder, and rename it to profanityFilter. You can customize config.lua to your needs, by default it is set up to block english words only. To add or remove words simply edit the language files in the data folder but remember that the censor character cannot be present in any of the loaded language files.
Hey! It's open source feel free to upgrade it and add words to the list. coughcough Pull Requests coughcough