The Twitch App is a simple way to import a list of banned words for your channel. It's a beta tool that will only work for Twitch users, so it's free to try out for your channel. It supports both importing lists and adding new words.

The features include a simple UI for both adding and removing words. You can also list import and export to file (for when you need to upload a list), export to CSV file, search and sort results by: title, date and time (new/removed/not removed), and delete words that are in the import list but not in the export list. Add words to an existing import list or import a new list and select the format you want to export to (CSV, TXT, etc.)