Estimates only — actual tokenizer counts may differ. Nothing is sent to a server.
Token Counter
Estimate tokens, characters, and context usage for your prompts. All counting happens locally.
About Token Counter
Estimate how many tokens a prompt will use before you send it to an LLM. See live character, word, and token counts to manage context windows and control costs.
Features
- Live token, word, and character counts
- Estimates tuned for popular model families
- Track context window usage
- Runs locally with no uploads
How to use
- 1Paste your prompt or text.
- 2Pick a model profile if available.
- 3Read the estimated token and context stats.
Frequently Asked Questions
Are the token counts exact?
They are close estimates. Exact counts depend on each provider's tokenizer, but the estimate is reliable for planning.
Is my text private?
Yes. Counting happens entirely in your browser, so your prompts stay on your device.
Which models are supported?
Estimates cover popular families such as GPT, Claude, and Gemini.
Related AI Tools
- Prompt BuilderCompose and structure reusable AI prompts.
- Prompt OptimizerRefine prompts for clearer model output.
- System Prompt GeneratorGenerate strong system prompts from a goal.
- AI JSON SchemaBuild JSON schemas for structured outputs.