Terms of Use

Last updated: 12 September 2026

1. Introduction

We, Andrii Kryshtal ("Provider"), operating in the United Kingdom, have developed the software solution NICH: GPT Anonymizer ("NICH"). NICH is a Google Chrome extension that runs entirely in your browser and uses a local language model together with built-in rules to detect sensitive information.

NICH enables you to anonymise text before sending it to AI assistants or other external services, helping protect your privacy by replacing sensitive information with placeholders. All detection and processing happens directly in your browser.

By installing, accessing or otherwise using NICH, you confirm that you accept and agree to be bound by these Terms of Use (the "Agreement").

2. Scope of Use

NICH is completely free to use with no limitations. There are no usage limits, subscription fees or premium tiers.

3. Licence and Restrictions

The Provider grants you a limited, non-exclusive, non-transferable, revocable licence to install and use NICH solely for your personal or internal business purposes, in accordance with this Agreement.

You agree to the following restrictions:

Not to reverse engineer: you must not reverse engineer, decompile or disassemble NICH.
Not to circumvent security: you must not use NICH to bypass or undermine any website's terms of service or security measures.
Not to modify: you must not modify NICH or create derivative works based on NICH, unless explicitly permitted by this Agreement or applicable law.

4. Data Processing and Privacy

4.1 Browser-based processing

NICH runs entirely in your browser. All anonymisation and restoration happens within the Chrome extension on your device. Your original and anonymised text remain in your browser; they are never transmitted to the Provider. Any data you choose to send to AI assistants or other external services after anonymisation is your sole responsibility.

4.2 Data collection

The extension does not collect any data. It has no analytics, no user accounts and no servers of its own. The only network request it makes is a one-time download of the detection model from the Hugging Face model hub. When you visit this website, our web server keeps standard access logs for security purposes. Full details are in our Privacy Policy.

5. User Responsibilities

5.1 Reviewing anonymised content

We strive to achieve a high level of anonymisation. However, no automatic detection is perfect and omissions or errors may occur. You must review the anonymised text to ensure it meets your requirements before sending it onward.

5.2 Content ownership and copyright

You are solely responsible for the content of any texts you use for anonymisation. The Provider shall not be liable if you anonymise texts that infringe copyright, violate third-party rights or in any similar situations.

5.3 Responsibility for sent data

Once anonymised content leaves your device (for example, when sent to an AI assistant or any other service), it is entirely your responsibility.

6. System Requirements

NICH requires the Google Chrome browser. The first use downloads the detection model (roughly 100 MB), which is then cached by your browser. NICH currently supports English text only.

7. Warranty Disclaimer

NICH is provided "as is" and "as available". To the fullest extent permitted by law, the Provider disclaims all warranties, whether express or implied, including but not limited to warranties of fitness for a particular purpose, merchantability and non-infringement.

You acknowledge:

that the anonymisation process may sometimes miss or over-anonymise content;
that the Provider does not warrant that NICH will meet your requirements or operate uninterrupted, timely, securely or error-free.

8. Liability and Indemnity

8.1 Limitation of liability

To the extent permitted by law, the Provider shall not be liable for:

loss or damage resulting from errors or omissions in anonymised text;
indirect, special, incidental or consequential damages;
loss of profit, revenue, data or goodwill, whether direct or indirect.

8.2 User responsibility

You agree to assume full responsibility for reviewing anonymised text and for all content you choose to send to AI assistants or similar services.

8.3 Indemnification

You will indemnify and hold the Provider harmless against any claims, actions, proceedings, losses, damages, expenses and costs (including court costs and legal fees) arising out of or in connection with your use of NICH.

9. Dispute Resolution

If you have any concerns or disputes regarding NICH or this Agreement, please contact the Provider directly:

Andrii Kryshtal
Email: anonymizer@nichtech.uk

If a dispute remains unresolved, it shall be governed by the laws of England and Wales, and the courts of England and Wales shall have exclusive jurisdiction unless you have a place of jurisdiction in another EU member state.

10. Changes to this Agreement

We may update this Agreement to reflect changes in how NICH operates, to meet legal requirements or to address new features or policies. When we make significant changes, we will update the date at the top of this page and mention it in the extension's store listing. Users are encouraged to review this Agreement regularly.

11. Support and Contact

If you encounter technical issues, first check the "How it works" and FAQ sections on this website. Otherwise contact us at anonymizer@nichtech.uk. We aim to respond within 48 business hours, and we prioritise urgent privacy-related issues.

12. Your Rights

As a user of NICH, you have the right to:

use NICH without providing any personal information;
receive notification of significant changes to these terms;
contact us with questions or concerns about your privacy or these terms.

13. Final Provisions

In the event any provision of this Agreement is deemed invalid, unenforceable or unlawful, all remaining provisions shall remain in full force and effect. No failure or delay by the Provider in exercising any right under this Agreement shall constitute a waiver of that right.

By installing or using NICH, you confirm that you have read, understood and agree to the above terms.