LightSession for ChatGPT by Emil K

LightSession for ChatGPT

Speed up your ChatGPT conversations by automatically managing message history in the browser DOM.

Features

🚀 Performance Boost - Removes old messages from DOM while keeping conversation intact
🎛️ Customizable - Keep 1-100 of the most recent messages
🔒 Privacy-First - 100% local processing, no data leaves your browser
🔄 Smart Trimming - Pauses when you scroll up to review history
💬 Stream-Aware - Waits for AI responses to complete before trimming

How It Works

LightSession monitors your ChatGPT conversations and automatically removes old messages from the
page's DOM while keeping the most recent messages visible. This dramatically improves browser
performance during long conversations.

The removed messages aren't deleted from ChatGPT - they're just hidden from your browser's DOM.
Refresh the page to see full history again.

Privacy

✅ No data collection
✅ No external connections
✅ No tracking or analytics
✅ Open source
✅ All processing happens locally in your browser

Usage

1. Click the extension icon in your toolbar
2. Toggle "Extension Enabled" on
3. Adjust how many messages to keep (default: 10)
4. Browse ChatGPT normally - trimming happens automatically

To restore full conversation history, click "Refresh" button in the popup or reload the page.

Compatible With

• chat.openai.com
• chatgpt.com

Technical Details

• Efficient DOM manipulation (stays within 16ms budget for 60fps)
• Multi-tier selector system for UI resilience
• Batched removal using requestIdleCallback

Support

GitHub: https://github.com/11me/light-session