Timestamp Injector for ChatGPT by KUDs
A browser extension that automatically injects customizable timestamps into ChatGPT conversations. It displays the exact time each message was sent or received, directly below the message bubble.
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About this extension
Timestamp Injector for ChatGPT
A browser extension that automatically injects customizable timestamps into ChatGPT conversations. It displays the exact time each message was sent or received, directly below the message bubble.
Features
Note for Firefox users: Due to a long-standing Firefox extension bug regarding native color pickers in popups, the custom color picker is disabled on Firefox. Only the preset colors are available.
Installation
For Developers (Unpacked)
Privacy
This extension runs locally in your browser. It only interacts with the ChatGPT webpage to retrieve and display message times. It does not send your data to any external servers. See the Privacy Policy for more details.
License
This project is licensed under the MIT License - see the LICENSE file for details.
A browser extension that automatically injects customizable timestamps into ChatGPT conversations. It displays the exact time each message was sent or received, directly below the message bubble.
Features
- Automatic Injection: Timestamps are automatically added to all messages (user and AI) in a ChatGPT conversation.
- Customizable: Click the extension icon to customize the appearance of the timestamps:
- Color: Choose any color for the timestamp text.
- Font Size: Select between Small, Medium, and Large.
- Format: Choose how the date and time are displayed (e.g., full date and time, short date, or just time).
- Seamless Integration: Matches the native look and feel of ChatGPT.
- Cross-Browser Support: Works on Chrome, Edge, and Firefox.
Note for Firefox users: Due to a long-standing Firefox extension bug regarding native color pickers in popups, the custom color picker is disabled on Firefox. Only the preset colors are available.
Installation
For Developers (Unpacked)
- Clone or download this repository.
- Open your browser's extension management page (e.g.,
chrome://extensions/orabout:debugging). - Enable "Developer mode".
- Click "Load unpacked" and select the
extensiondirectory from this project.
Privacy
This extension runs locally in your browser. It only interacts with the ChatGPT webpage to retrieve and display message times. It does not send your data to any external servers. See the Privacy Policy for more details.
License
This project is licensed under the MIT License - see the LICENSE file for details.
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Permissions and data
Required permissions:
- Access your data for chatgpt.com
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.0
- Size
- 51.57 KB
- Last updated
- 9 days ago (May 13, 2026)
- Related Categories
- License
- MIT License
- Version History
- Add to collection
The developer of this extension asks that you help support its continued development by making a small contribution.