Free LLM Token Calculator - Secure Offline Token Counter & Trimmer

Tokens can be thought of as pieces of words. Before processing, the input is broken down into tokens that don't necessarily align with word boundaries.

For a detailed explanation of tokens and how to count them, see the OpenAI Tokenizer Guide.

How this calculator works

This calculator uses the actual GPT-2 tokenizer (the same one used by many OpenAI models) to provide precise token counts. It:

Processes text in real-time using the GPT-2 tokenizer
Shows exact token boundaries with color highlighting
Calculates precise word and character counts

Note: While this calculator uses the GPT-2 tokenizer, some newer models might use slightly different tokenizers. For model-specific token counts, please use OpenAI's Tokenizer tool.

Calculate from Text

Note: All calculations are performed locally - no text leaves your browser.

▶ Show text input

Text processing:

Paste your text in the area above
Adjust any of the numbers below (tokens, words, or characters) to trim the text
The original text is preserved in memory - you can adjust numbers multiple times
When text is trimmed, a "Copy to clipboard" button will appear

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