CloakPrompt launches zero-knowledge browser PII scrubber for ChatGPT and Claude

CloakPrompt is a zero-knowledge, client-side browser extension designed to mask sensitive data such as API keys and personal identifiable information before it leaves the browser, while automatically restoring the original text inside various AI chat interfaces. The tool features deterministic reversible tokenization, offline sandboxing, and support for major AI platforms including ChatGPT, Claude, and Gemini. Open article →