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AI Token Counter Runs in your browser. No input data is sent to our server.

Paste a prompt into the editor, choose a model family, and count tokens instantly in the browser. This page is useful for prompt writing, API request planning, context budgeting, and comparing token usage before you send text to a model.

Token analysis

Paste content and run the tool instantly.

This tool runs in your browser so you can inspect prompt size, estimate request cost, or clean up reusable prompts without sending working drafts to a remote processing service.

Count AI Prompt Tokens Online

Count AI prompt tokens online for free and compare token usage across model families before sending a request.

How to use AI Token Counter

1

Paste content into the prompt text panel.

2

Choose the model family you want to measure, then count tokens.

3

Copy or download the result once it looks right.

What this tool helps you do

Measure prompt size with a model-aware tokenizer

Compare token usage before you send an API request

Use sample input for quick testing

Copy or download the analysis result

Why this helps in AI workflows

You want to check prompt size before sending an API request.

A long system prompt needs quick token budgeting.

You are comparing prompt variants and want the lighter one.

You need a fast token count without opening a separate coding environment.

Which tool should you choose?

AI Token Counter: Choose this when you need a token total plus prompt text metrics for a selected AI model family.

Word & Character Counter: Choose the basic counter when you only need words, characters, lines, or paragraphs and do not care about tokens.

Common problems and fixes

I am not sure whether my prompt is getting too large.

Count tokens first so you can inspect the text size before using it in a workflow.

I want to compare prompt length across older and newer model families.

Switch the model family selector and run the counter again to compare tokenizer groups.

I only have plain prompt text and need a quick token estimate I can trust more than a rough character rule.

Use the tokenizer-backed counter to measure the prompt with the selected model family.

Related tools

AI Tools Hub AI Cost Estimator AI Prompt Formatter AI Prompt Template Converter JSON to TOON YAML to TOON CSV to TOON XML to TOON

Related Guides

What Is an AI Token and Why Does It Matter? How to Estimate Prompt Size Before Sending It to an AI Model Why the Same Prompt Has Different Token Counts Across Models How to Reduce Token Count Without Losing Meaning When to Use AI Token Counter vs AI Cost Estimator How to Format a Prompt Before Checking Token Count or Cost

Frequently asked questions

How do I count tokens in a prompt?

Paste your prompt into the input box, choose the model family, and run the counter to see the token total and related text metrics.

Does the token count change by model family?

Yes. Different model families can use different tokenizer encodings, so the same text may produce different token totals.

Are Gemini counts exact?

Gemini options on this page use a local estimator, so they should be treated as helpful estimates rather than exact API token counts.

Are open-model counts exact?

Open-model options on this page are estimated unless noted otherwise, so they are best used for rough budgeting and prompt comparisons.

Is this AI token counter free?

Yes. It is free to use in your browser.