Claude Developer Tools

Free tools for working with the Claude API. Token counting, model comparison, system prompt library, and more.

Built by Jamie Cole

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LLM Token Counter

Count tokens for Claude, GPT-4, Gemini, and other models. Paste text, get accurate counts instantly. No server, all client-side.

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Claude Model Comparison

Side-by-side specs for every Claude model. Context window, pricing, speed, capability ratings. Useful when picking which model to actually use.

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CLAUDE.md Generator

Generates a CLAUDE.md file for your project. Answer a few questions about your stack and preferences, get a ready-to-use file.

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Claude System Prompts

Curated library of system prompts for common use cases. Copy, tweak, ship. Filtered by category so you find what you need fast.

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All Tools Hub

Full index of every Claude developer tool in one place. Bookmark this if you build with Claude regularly.

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Claude Token Counter (Chrome)

Live token badge on claude.ai as you type. Session tracking, model selector. Coming to CWS

View on GitHub →