Is this profanity detector free?

Yes, completely free with no signup and no usage limits.

Does my text leave my device?

No. All detection runs in JavaScript inside your browser using a built-in word list. Nothing is sent to any server.

Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.

Profanity Detector

Paste text below, then click Scan to detect and highlight any profanity. Built-in word list, fully offline.

100% client-side · no upload · no external API

Input text

Paste or type text into the input box above.
Click Scan for profanity.
Detected words are highlighted in red in the output. The summary shows the count.

Is this profanity detector free?: Yes, completely free with no signup and no usage limits.
Does my text leave my device?: No. All detection runs in JavaScript inside your browser using a built-in word list. Nothing is sent to any server.
Does it work on mobile?: Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.