chat_timestamp

ChatGPT Timestamp – Privacy Practices

Last updated: 05 May 2025

1. Introduction

ChatGPT Timestamp is an open-source Chrome extension that adds a local date-and-time label to every message in your ChatGPT conversations. We take privacy seriously and have designed the extension so that all processing and storage happen entirely on your device.

2. What data does the extension handle?

Category	Details	Location	Retention
Message timestamps	A single number (`Date.now()` in ms) for each ChatGPT message you see.	Stored with `chrome.storage.local`.	Stays until you manually clear your browser’s extension data.
Extension setting	One boolean value `enabled` to remember if timestamps are hidden/shown.	Stored with `chrome.storage.local`.	Same as above.

No personal, behavioral, or sensitive data is ever collected or processed.

3. How is the data used?

Displaying timestamps: When you revisit ChatGPT, the extension reads the saved timestamp for each message and shows it next to the message.
Remembering your toggle state: The enabled flag preserves your visibility preference.

No data is synced, shared, sent to a server, or logged externally. Everything stays local.

4. Permissions explained

Permission	Why it’s required	Scope
`storage`	To store and retrieve timestamps and the visibility toggle flag.	Local browser profile only.
`https://chat.openai.com/*`	Allows the extension to access and modify ChatGPT’s DOM to insert timestamps.	Only ChatGPT pages.
`https://chatgpt.com/*`	Same as above.	Only ChatGPT pages.
`https://.chatgpt.com/`	Ensures support for all current and future subdomains of ChatGPT.	Only ChatGPT pages.

The extension does not request permissions for activeTab, camera, microphone, notifications, or other sensitive APIs.

5. Remote code policy

All JavaScript is included in the extension package itself.
✅ No remote scripts
✅ No CDN libraries
✅ No dynamic imports from external sources

6. Cookies and tracking

❌ No cookies
❌ No fingerprinting
❌ No analytics
❌ No third-party trackers

7. Security measures

Uses Manifest V3, which enforces a strict permission model and background isolation
Data is stored in chrome.storage.local and cannot be accessed by websites

8. Children’s privacy

The extension is intended for general use and does not knowingly collect data from children under 13.

9. Changes to these practices

This document may be updated to reflect new features or legal requirements.
The “Last updated” date at the top will always show the current version.

10. Contact

For privacy questions or concerns, please contact:
📧 valmislab.studio@gmail.com

By using the ChatGPT Timestamp extension, you acknowledge that you have read and understood these Privacy Practices.