ChatGPT Usage Limit Tracker

A Chrome Extension to monitor your ChatGPT usage limits (quotas) in real time.

📦 Installation

Browser	Install Link
	Chrome Web Store
	Firefox Add-ons
	Edge Add-ons

🚀 Features

• Track usage limits for GPT-5 models — including gpt-5, gpt-5-thinking, and gpt-5-pro.
• Plan switcher — switch between Free, Plus, Team, and Pro plans.
• Visual progress bars — see your quota usage at a glance.
• Local & private — all data is stored locally in your browser; no tracking.
• Auto-updates — we’ll update model limits when OpenAI changes them.

🖥️ How It Works

1. The extension listens for requests to ChatGPT’s backend API.
2. It detects which model you’re using (gpt-5, gpt-5-thinking, etc.).
3. Each request is timestamped locally and compared against your plan’s quota rules.
4. Displays usage progress, remaining quota, and plan-specific limits.

🔒 Privacy

• No tracking: The extension does not collect, transmit, or store any personal data on external servers.
• Open source: Full code is available on GitHub.

📜 Changelog

2.2 — 2025-08-15

• Added monthly period.

2.1 — 2025-08-12

• Added Japanese and Korean.

2.0 — 2025-08-08

• Added GPT-5 support (gpt-5, gpt-5-thinking, gpt-5-pro).
• Added plan switcher (Free, Plus, Team, Pro).

1.1 — 2025-07-16

• Adapted to OpenAI API endpoint changes.

1.0 — 2025-06-13

• Initial release.
• Supported models: o3, o4-mini-high, o4-mini, 4.5, 4.1, 4.1-mini, 4o.