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How to Build a Zero-Knowledge AI Prompt Anonymizer in Pure JavaScript (Two-Way PII Masking)
Every day, developers, lawyers, and founders paste confidential source code, customer records, and internal business metrics directly into ChatGPT, Claude, and Gemini . When you paste raw client data like "Sarah Jenkins from TechNova GmbH paid $45,000" into public LLM chats, that private…