Privacy Policy & Terms of Service

🛡️ Privacy Policy

This Privacy Policy describes how PromptLens (the "Extension") handles user information. The Extension is designed with your privacy as the top priority and operates entirely locally.

By using the Extension, you agree to this Privacy Policy.

📊 Information We Collect

🚫 Information We DO NOT Collect

The Extension never collects, stores, or transmits the following:

• Personal Information: Names, email addresses, physical addresses, phone numbers
• Image Data: Analyzed image files
• Generated Data: Created prompt content
• Browsing Data: Visited websites, browsing history
• Device Information: Device IDs, IP addresses, location data
• Usage Statistics: Usage frequency, analysis patterns, error logs

💾 Locally Stored Information

Only the following settings are stored locally in Chrome's sync storage:

• Language preference (Japanese/English)
• UI customization settings

This information is tied to your Chrome account and synced across devices, but is technically impossible for developers to access.

🎯 How We Use Information

The Extension performs all processing locally within your browser. No communication with external servers occurs.

Image Analysis Process Flow

1. User right-clicks on an image
2. Image data temporarily loaded into memory
3. Local analysis via TensorFlow.js
4. Prompt generation and display
5. Immediate deletion of image data from memory

🔐 Security

The Extension implements the following security measures:

• Complete Offline Operation: All features available without internet connection
• Immediate Data Disposal: Image data deleted from memory immediately after analysis
• Principle of Least Privilege: Uses only minimum necessary Chrome APIs
• Open Source: Source code published on GitHub for transparency
• Content Security Policy: Strict security policy to prevent XSS attacks

📜 Terms of Service

1. License Grant

The Extension is free to use. There are no restrictions for personal or commercial use. However, usage of generated prompts must comply with each AI service's terms of service.

2. Prohibited Uses

The following activities are prohibited:

• Reverse engineering, modification, or redistribution of the Extension (beyond open source license scope)
• Use for illegal purposes
• Activities that violate others' copyrights, privacy rights, or other rights
• Activities that interfere with the Extension's normal operation
• Mass usage as automation tools or bots

3. Disclaimer

The Extension is provided "as is" without warranties of any kind, whether express or implied. The developer is not liable for any damages arising from use of the Extension.

4. Changes and Updates

The developer reserves the right to modify, add, or remove Extension features without notice. This Privacy Policy and Terms of Service may be updated. Significant changes will be notified within the Extension.

5. Governing Law

These terms are governed by and construed in accordance with Japanese law. Any disputes shall be subject to the exclusive jurisdiction of the Tokyo District Court.