About CensorMate

CensorMate is a free browser-based profanity censor whose AI runs on-device, so files are never uploaded. It finds any word in your audio or video with speech-recognition AI, shows you the full transcript, and bleeps exactly what you approve.

Why we built it

Creators lose real money to profanity — one flagged word can demonetize a YouTube video or void a podcast sponsorship. The existing fixes were bad in two different ways: manual bleeping in a video editor costs hours per episode, and the "easy" online tools all require uploading your uncensored footage to someone else's server. The footage you're censoring is, by definition, the footage you least want floating around a stranger's cloud.

Modern browsers can run real AI locally. So we built the tool we wanted: automatic word-level censoring where the AI comes to your files instead of your files going to the AI.

How it actually works

CensorMate runs OpenAI's Whisper speech-recognition model inside your browser (via WebAssembly and WebGPU), transcribes your audio with word-level timestamps, matches your keyword list, and rebuilds only the audio track with bleeps or silence — the video stream is copied untouched. Nothing is transmitted: no accounts, no uploads, no telemetry in the app. You can read the details in our privacy policy, which is unusually short because there's nothing to disclose.

Who's behind it

CensorMate is built by a small independent team (it started as one developer tired of re-editing videos). The little censor bar in the headphones is Bleep, our mascot — he listens to your audio for bad words all day, entirely on your device.

Get in touch

Questions, feature requests, press: support@censormate.com. We actually reply.