NICH

Anonymize sensitive info before sharing with AI assistants. Privacy-focused, local processing. 🚧 BETA VERSION – EARLY ACCESS This is a beta release. We’re improving accuracy and usability based on your feedback.

PROTECT YOUR PRIVACY WHEN USING AI ASSISTANTS NICH: GPT Anonymizer detects and replaces sensitive information in your text in one click before you share it with ChatGPT, Claude, Gemini, or any other AI tool. Keep your data private while still getting the help you need.

🔒 WHAT GETS ANONYMIZED Personal names, email addresses, phone numbers, credit card numbers, dates and times, monetary amounts, URLs and web addresses, physical addresses, organisation names, geographic locations, and any custom terms you define.

📝 HOW IT WORKS: ANONYMIZE YOUR TEXT: When you're ready to protect your data, simply click the NICH icon in your text field. NICH instantly converts personal details like names, emails, or organisation information, into safe placeholders. DEANONYMIZE (Restore Text): When an AI response comes back, just highlight the text, right-click, and select Copy Deanonymised. A quick message will confirm that the restored text has been copied to your clipboard. PASTE DEANONYMIZED TEXT: Finally, paste the restored content back into your email, chat, or document. All placeholders will automatically revert to the original details.

✨ KEY FEATURES

• AI-powered detection using a BERT model that runs locally in your browser
• Works fully on your computer – no internet connection required for processing
• Preserves text formatting when restoring anonymized text
• You can add your own custom entities and placeholders
• Works seamlessly in ChatGPT, Claude, Gemini and more

🛡️ PRIVACY-FOCUSED DESIGN All processing happens locally inside your browser. No data is ever sent to servers. There is no tracking, telemetry, or analytics. The extension is fully transparent and free.

⚙️ TECHNICAL DETAILS

• Uses Transformers.js with a local BERT model for entity recognition
• All data stays in your browser – never transmitted
• Supports rich text and HTML-to-Markdown conversion
• Lightweight and efficient – does not slow down your browsing

🆓 FREE Completely free to use. No subscriptions, no hidden costs.

⚡ GETTING STARTED

Install the extension.

Click the NICH icon in your toolbar.

Start typing – anonymisation happens automatically.

🔐 YOUR PRIVACY MATTERS