03
Prompt tools

Token & Context Counter

Calculates characters, words, lines, and an approximate token count. The token result is an estimate because exact counts vary by model tokenizer; it is intended for safe context planning.

FreeNo accountIn-browser
Input never leaves this page.
Result
Your result will appear here.
HOW TO USE IT

A result in three steps

  1. 01

    Paste your text.

  2. 02

    Run the count.

  3. 03

    Leave a safety margin when comparing with model limits.

GOOD USE CASES

When is this tool useful?

  • Context-window planning
  • Prompt length comparison
  • Rough cost estimation
Important limitation

Automated output is a preliminary assessment. Do not use it alone for legal, financial, medical, or security-critical decisions.

ABOUT THIS TOOL

Frequently asked questions

Does this tool send input to a server?+

No. Processing runs in this browser tab. Data leaves the page only when you choose to copy or download the result.

Is the result definitive?+

The tool produces consistent output from disclosed rules and browser APIs, but context, data quality, and method limitations can affect it. Verify high-impact decisions.

Is input saved?+

No. Tool input is not persisted to localStorage or another durable store. Only a non-sensitive tool-usage count may be kept on this device for personalized home-page shortcuts.