ChatGPT Booster

A Chrome extension with 9 power-user modules for ChatGPT — from auto-hiding old messages to PDF export, screenshot capture, and prompt shortcuts.

Overview

While using ChatGPT daily for learning and development, I kept running into the same friction points — no way to export conversations, math formulas impossible to copy, long threads becoming unreadable. Instead of waiting for OpenAI to fix them, I built an all-in-one extension that fills every gap I encountered. What started as a quick script grew into 9 feature modules, now refactored into a clean modular architecture.

Features

Auto-hide old messages — collapses older messages in long conversations, restores on scroll-up
LaTeX copy — click any formula to copy raw $$ LaTeX $$ syntax
Collapse/expand replies — fold lengthy responses with one click
Screenshot capture — render and capture conversation segments
Prompt replace — trigger-word shortcuts that auto-expand into preset prompts
PDF export — export full conversations as formatted PDF
Image copy — render any message as an image and copy to clipboard
Floating ball — conversation binding and quick-jump navigation
Multi-language — i18n support for English, Chinese, Japanese, Korean

Architecture

Modular content-script injection via Manifest v3 — 12 modules loaded in dependency order, each exporting through a window.Booster* namespace. MutationObserver watches for DOM changes to inject features as ChatGPT renders new content.