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Prompt Length & Token Estimator

Estimate token count for ChatGPT, Claude, and other AI models instantly. Free online prompt length analyzer with real-time character, word, and token statistics.

Text Statistics

Characters (with spaces)
0
Characters (no spaces)
0
Words
0
Lines
0
Sentences
0

Estimated Tokens

Char-based (÷4)
0
GPT-4 / Claude
Word-based (×1.33)
0
All models
GPT-4o (128K) — Context Window
0 / 128,000 tokens used (0.0%)

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About This Tool

Use the Token Estimator to accomplish your task quickly and efficiently right in your browser. This tool runs entirely client-side — no file uploads, no server processing, and no account required. Your data stays on your device for complete privacy.

How to Use

  1. Open the tool and provide the required input (text, file, or data).
  2. Configure any available settings to match your needs.
  3. Click the action button to process your request.
  4. View, copy, or download the results.

Frequently Asked Questions

Is the Token Estimator free to use?
Yes, completely free with no hidden costs, no subscriptions, and no usage limits. Use it as often as you need.
Do I need to create an account?
No. The tool works immediately — no sign-up, no email address, and no personal information required.
Is my data private and secure?
Yes. All processing happens in your browser using JavaScript. No data is uploaded to any server. Your input and output stay entirely on your device.
Does this work on mobile devices?
Yes. The tool is fully responsive and works on smartphones, tablets, and desktop computers with any modern web browser.

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