Claude Usage Counter (Modular, No API Key) 作者： Humberto

📊 Smart Usage Tracking for Claude.ai

Keep track of your Claude conversations with intelligent counting that respects plan limits:

• Message & Token Counting: Tracks messages and estimates text tokens using configurable algorithms (~1 token/4 chars or ~1.3 tokens/word)
• 5-Hour Reset Window: Auto-resets counters every 5 hours to match Claude's limits
• Plan-Aware Limits: Supports Free (9), Pro (45), Max 5× (225), and Max 20× (900) with remaining count display
• File & Image Support: Counts attachment tokens with customizable rates for PDFs, documents, and images by resolution
• Real-Time Draft Tracking: See estimated tokens as you type
• Privacy First: All data stays local - no API keys, no external servers, no data collection

Perfect for:
- Power users monitoring usage patterns
- Teams managing message budgets
- Anyone wanting transparent token estimation

Permissions Explained:
- Storage: Save your settings and usage data locally
- Claude.ai access: Count messages and attachments on the site

Works entirely offline after installation. Your conversation data never leaves your browser.