Prompt Token Counter Free Online Tool

Estimate token count and API cost for your prompts before sending them. Free, no signup required. Use it right in your browser.

About this tool

What it does, limits, use cases, tips, and answers to common questions.

Overview

Vague instructions to a model waste time and tokens. Prompt Token Counter turns your goal into a structured prompt you can reuse.

Pick a template close to your task, replace bracketed placeholders with real names and constraints, then copy to your model of choice.

Compared with a general chat window, Prompt Token Counter keeps prompt token counter structure visible: fields, previews, and export buttons stay on one screen.

Prompt Token Counter on mopailor.com exists because teams asked for a fast way to estimate token count and api cost for your prompts before sending them.

If Prompt Token Counter saves you time on estimate token count and api cost for your prompts before sending them, bookmark it so marketers can reuse the same mopailor.com flow.

Prompt Token Counter sends your prompt token counter prompt to Mopailor's AI worker (estimate token count and api cost for your prompts before sending them); do not paste passwords, medical records, or unpublished legal text you would not share with a contractor.

Limitations

  • Templates do not call models until you paste elsewhere.

  • Provider safety filters may still block valid prompts.

  • Mobile browsers may reload aggressive tabs during long jobs; save early.

  • Placeholder text left in brackets produces useless output.

  • Prompt Token Counter cannot recover work after you close the tab without a saved download.

Common Use Cases

  • Building a system prompt for an internal support bot spec.

  • Teaching interns how to ask models for structured JSON.

  • Saving winning prompts for a freelance retainer.

  • support teams batch prompt token counter exports when deadlines stack and desktop apps are not installed on the travel laptop.

Pro Tips

  • Replace all bracket placeholders before sharing with clients.

  • Version prompts in git like code.

  • Document settings that worked in your team wiki.

  • Pair Prompt Token Counter with a related Mopailor tool instead of forcing one page to do unrelated work.

  • Version 2: rename Prompt Token Counter downloads with client code and date before emailing them.

Frequently Asked Questions

Can I use the output at work?

You may use results in client projects, but verify trademarks, licenses, and facts yourself.

Is my input uploaded?

Your prompt goes to Mopailor's AI worker. Do not submit secrets.

Do I need an account?

No signup. Open the page, run the tool, copy or download the result.

Is Prompt Token Counter free?

Yes on mopailor.com for normal use. You still verify rights to material you upload.

Can I undo?

Keep the original upload. Use the browser back button before downloading if the preview looks off.

Can Prompt Token Counter replace our enterprise tool chain?

No. It is a focused browser utility for prompt token counter. Regulated teams still need their own review, archival, and approval process.

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