Which models are supported?

GPT-4o, GPT-3.5, Claude (Anthropic), Gemini (Google), and other common models.

Is the cost estimation reliable?

The estimation is based on public API prices. Exact prices may vary.

No, counting is performed entirely in your browser.

🇬🇧WebFileTools/LLM Token Counter

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Count tokens for GPT-4, GPT-4o, Claude, Gemini, and more. Useful for estimating API costs. 100% local — no data sent.

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Détail par modèle

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• cl100k_base : GPT-4, GPT-3.5, Claude, Llama (exact ou approx.)

• o200k_base : GPT-4o, GPT-4.1, o1/o3/o4, Gemini (exact ou approx.)

• Les tokens = environ ¾ d'un mot en anglais, un peu plus en français.

WebFileTools Token Counter analyzes your text and calculates the number of tokens used by different language models (LLMs).

Paste your text, select the model, and instantly see the token count and estimated cost.

Which models are supported?: GPT-4o, GPT-3.5, Claude (Anthropic), Gemini (Google), and other common models.
Is the cost estimation reliable?: The estimation is based on public API prices. Exact prices may vary.
Is the text sent to a server?: No, counting is performed entirely in your browser.

Generate a QR code from a URL or text. Customizable colors, PNG and SVG export. Free, 100% in the browser.

Calculate and compare MD5, SHA-1, SHA-256, or SHA-512 file fingerprints. 100% in the browser. Verify your downloads.

Chat with a locally hosted language model. Summaries, rephrasing, corrections, translations. Free.