Estimate token counts for LLMs (GPT, Claude, Llama, Gemini)
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Choose GPT-4, Claude, Llama, or other models for accurate token counts.
View token statistics
See token count, character count, and estimated API costs.
Yes, the Token Counter is completely free with no limitations. Count tokens for any text and any model without registration or usage restrictions.
Yes, token counting happens entirely in your browser using JavaScript tokenizer implementations. Your text is never sent to any server, which is crucial when working with proprietary content or sensitive information before sending it to AI APIs.
Tokens are the basic units that AI language models use to process text. They are not exactly words - a token might be a word, part of a word, or punctuation. Understanding token counts helps you stay within model context limits, estimate API costs, and optimize your prompts for efficiency.
Each AI model family uses its own tokenizer with different vocabularies. GPT models use tiktoken, Claude uses its own tokenizer, and other models have their own implementations. The same text can have different token counts across models, which affects pricing and context window usage.
To reduce tokens: remove unnecessary whitespace and formatting, use shorter synonyms, be concise in instructions, avoid repetition, and remove boilerplate text. The tool shows real-time counts so you can see the impact of your changes immediately.