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AI Prompt Anonymizer - Safe Text for ChatGPT & Claude

AI & LLM Tools

PII filters

Anonymization rules

Category buckets (auto-assigns generic name)

What is AI Prompt Anonymizer - Safe Text for ChatGPT & Claude?

Prompt Anonymizer is a privacy-focused utility designed to sanitize, redact, and anonymize AI prompts before submitting them to public LLM services (like ChatGPT, Claude, or Gemini). Artificial intelligence APIs and chat portals store prompt histories, which are often reviewed by human annotators or used for training. Our tool automatically detects and redacts Personally Identifiable Information (PII) - such as names, emails, API keys, phone numbers, and IPs - and replaces them with clean placeholders, keeping your privacy intact.

How it works

The anonymizer uses high-performance regular expression patterns to scan text for common PII patterns (emails, IPs, keys). It also features user-defined custom replacement mappings that run locally in the browser. It never transmits the input text over the network, ensuring that your prompt is fully clean before you copy it.

Features & Benefits

  • Redacts emails, IPs, SSNs, credit cards, and phone numbers in one pass
  • Replaces company names, people, and project names with generic stand-ins
  • Manual word → replacement pairs for full control over substitutions
  • Mappings saved locally - build your word list once and reuse it
  • Runs entirely in your browser - text never leaves your device

Frequently Asked Questions

Is my text sent to a server?

No. All processing happens in your browser using JavaScript. Nothing is uploaded or stored externally.

What is the difference between redaction and anonymization?

Redaction replaces structural PII (emails, SSNs, IPs) with a placeholder like [REDACTED]. Anonymization replaces specific domain words - company names, people, projects - with realistic-sounding generic names like Acme Corp or Alice, keeping the document readable.

Do my mappings persist across sessions?

Yes. Your manual pairs and category mappings are saved to your browser's localStorage. They are available the next time you visit.

What if I run out of names in a category pool?

The tool appends a counter to the last pool name. For example, after Tailspin Toys is used, the next company becomes Tailspin Toys 2.

Can I use this for GDPR compliance?

This tool is a convenience utility, not a compliance solution. For regulatory requirements, use a dedicated data governance platform. This tool is best suited for quickly preparing text before sending it to an AI assistant.

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