Token Counter
Estimate how many tokens your text consumes in major LLM models to keep prompt costs under control. Fully processed in your browser.
Runs in your browser
Real-time
Text to estimate
Composition
Estimated tokens by model
Heuristic, not an official tokenizer
| Model / tokenizer | Tokens | Relative |
|---|
Rule of thumb: ~4 chars/token for English, ~1.5 chars/token for CJK. Use the vendor tokenizer for billing.
About this tool
Estimate how many tokens your text consumes in major LLM models to keep prompt costs under control. Fully processed in your browser.
How to use
- Fill in the input box above, or click "Fill sample" to try it instantly
- Adjust the options as needed — results update as you type
- Click "Run" to get the result, then copy or export it in one click
Tips
- Runs entirely in your browser — your data never leaves the device
- Completely free, no registration, no usage limits
- Most tools compute in real time as you type