LLM Token Counter – Free GPT Token Calculator
Calculate tokens for GPT, Claude, Gemini, Llama, and Mistral models. Get instant estimates for token cost, limits, and API usage — all offline in your browser.
LLM Token Counter
Token Details
Platform: All
Model: Not selected
Estimated Tokens: 0
Words: 0
Characters: 0
*Token count is an estimation based on typical tokenizer behavior of each model family.
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Why this tool is useful
- Perfect for developers working with GPT, Claude, or Gemini APIs.
- Easy cost estimation based on input/output tokens.
- Instant result — no API key, no login.
Supported Models
- OpenAI GPT-4o, GPT-4.1, GPT-3.5
- Claude 3, Claude 3.5 Sonnet & Opus
- Google Gemini Pro / Flash
- Llama 3 / Mistral
FAQs
What is the LLM Token Counter?
It’s a free online tool that counts tokens for models like GPT, Claude, Gemini, Llama, and Mistral. It also estimates cost and usage limits.
Does this tool support GPT-4o, GPT-4.1, Claude 3.5, and Gemini?
Yes. It supports all modern models and automatically calculates tokens and estimated API cost.
Is any data uploaded?
No. Everything runs 100% locally in your browser. Nothing is uploaded or stored.
Can I export the token breakdown?
Yes. You can copy or download the token report as a .txt file.
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