Frequently Asked Questions

What is NICH: GPT Anonymizer?

NICH is a powerful browser extension that automatically identifies and removes sensitive information from your text before sending it to GPT services. It uses Transformers.js with a local BERT model for AI-powered entity recognition to protect personal data, company information, and other confidential content while preserving the context of your messages.

What types of information can NICH anonymize?

NICH can identify and anonymize various types of sensitive information, including:

  • Personal names and identifiers
  • Email addresses and phone numbers
  • Company names and internal terminology
  • Locations and addresses
  • Dates and numerical identifiers
  • Custom patterns you define

What languages does NICH support?

Currently, NICH only supports English text. We are working on adding support for additional languages in future updates. Please check back for updates.

How accurate is NICH's anonymization?

NICH achieves approximately 90% accuracy in identifying sensitive information. We recommend reviewing the anonymized text before sending it to any service. You can help improve our system by reporting any missed patterns or false positives through our feedback system.

How does NICH process my data?

NICH uses Transformers.js with a local BERT model for entity recognition, running entirely in your browser. Key features include:

  • All data stays in your browser – never transmitted to any server
  • Supports rich text and HTML-to-Markdown conversion
  • Lightweight and efficient – does not slow down your browsing
  • Uses advanced machine learning for accurate entity detection

Is NICH free to use?

Yes! NICH is completely free for everyone. There are no usage limits or subscription fees.

What usage data does NICH collect?

We collect minimal usage statistics to improve our service, including anonymized technical information (browser version, country-level location) and basic usage metrics, like the number of times you have used NICH. No original or anonymized text ever reaches our servers.

How can I get support?

Check our tutorial page for a step-by-step guide. For additional support, email us at anonymizer@nichtech.uk.