Cinema Guard

Cinema Guard is a Windows desktop app that removes profanity, swear words and vulgar language from your own video files. Point it at a film, press Censor, and it writes a clean copy next to the original with the offending words muted and the subtitles cleaned up to match.

It listens to the film's dialogue with a speech model, or reads the subtitles it already has, then mutes only the moments that carry a filtered word. Background music, sound effects and the rest of the dialogue are left exactly as they were, and the video itself is never re-encoded.

Key Capabilities

• Word-accurate muting: Speech-model timings silence the exact word, not the whole line, so the scene still makes sense.
• Clean subtitles: Offending words are masked in the subtitle track too, with the choice to keep the cleaned subtitles separate or embedded.
• Your own filter list: Start from a sensible preset, then add or remove the words your household cares about.
• Batch queue: Drop in a folder of films and let it work through them one at a time. One failure never stops the rest.
• Surround-sound aware: Vocals-only mode splits a 5.1 or 7.1 track and silences just the channels carrying the word.
• Runs on your machine: No account, no upload and no cloud processing. Your films never leave your PC.

Cinema Guard is free for Windows 10 and 11 (x64). Download the installer to get started.

Browser Extension

Cinema Guard also comes as a free browser extension for Chrome, Brave and Edge. It mutes swearing in YouTube videos while you watch, using the same word lists, and can be turned on for other video sites too. Nothing is sent anywhere: it reads the video's captions inside your browser. Add it from the Chrome Web Store.