0 servers harmed
Prompt & Circumstance

Calculate tokens across the AI landscape.

Your prompts, your rules, your tab. Compare prompt lengths, context usage, and input costs for leading LLMs in real-time — 100% client-side, no servers involved.

FAQs

Feed the tokenizer.

Prompt: Natural language instructions or questions for LLMs.
0 chars·0 words·0 lines
Drop a file here or click to browse
Accepts .CSV, .TXT, .JSON, .LOG files · Max 10 MB · Up to 10,000 rows streamed
Processing...

Your Tokens, Uncut.

What is a token? A token is a piece of text processed by an LLM. Roughly 1 token = 4 characters or 0.75 words in English. Each highlighted chunk below represents one token.
Start typing in the input box or upload a file to visualize token chunks...

The Bill Calculator

See how your prompt's/file content cost compares across flagship models
Live · updates as you type
Type a prompt above or upload a file to see cost comparisons across all flagship models.

Tokenomics at a Glance.

Exact Estimate
ModelTokensInput CostOutput CostCost/API CallAPI CostTotal Cost
Type a prompt above or upload a file to Glance at Tokenomics of flagship models for this provider.
ModelTokensInput CostOutput CostCost/API CallAPI CostTotal Cost
Type a prompt above or upload a file to Glance at Tokenomics of flagship models for this provider.
ModelTokensInput CostOutput CostCost/API CallAPI CostTotal Cost
Type a prompt above or upload a file to Glance at Tokenomics of flagship models for this provider.
ModelTokensInput CostOutput CostCost/API CallAPI CostTotal Cost
Type a prompt above or upload a file to Glance at Tokenomics of flagship models for this provider.
ModelTokensInput CostOutput CostCost/API CallAPI CostTotal Cost
Type a prompt above or upload a file to Glance at Tokenomics of flagship models for this provider.
ModelTokensInput CostOutput CostCost/API CallAPI CostTotal Cost
Type a prompt above or upload a file to Glance at Tokenomics of flagship models for this provider.
ModelTokensInput CostOutput CostCost/API CallAPI CostTotal Cost
Type a prompt above or upload a file to Glance at Tokenomics of flagship models for this provider.
ModelTokensInput CostOutput CostCost/API CallAPI CostTotal Cost
Type a prompt above or upload a file to Glance at Tokenomics of flagship models for this provider.
ModelTokensInput CostOutput CostCost/API CallAPI CostTotal Cost
Type a prompt above or upload a file to Glance at Tokenomics of flagship models for this provider.
Comparative Analysis
Token count, input/output costs, and total API call cost across all models
Token Count by Model
Input Cost by Model
Output Cost by Model
Total Cost (API Call) by Model

Frequently Asked Questions

Universal LLM Token and Cost Counter is a free, client-side web application that counts tokens and calculates API costs for 60+ LLMs across OpenAI, Anthropic, Google Gemini, Meta Llama, DeepSeek, Mistral, Alibaba, xAI, and Nvidia — instantly, in your browser.

Yes. It runs entirely in your browser with no servers, no accounts, and no paywalls. Just open the site and start counting.

No. Everything runs locally in your browser. Your text never leaves your device — 0 servers harmed. Once you close the tab, everything is gone.

We support OpenAI, Anthropic, Google Gemini, Meta Llama, DeepSeek, Mistral, Alibaba (Qwen), xAI (Grok), and Nvidia — covering 60+ models with real-time token counting and cost comparison.

For OpenAI and Meta Llama models, we use their official tokenizers (js-tiktoken and llama3-tokenizer) for exact counts. For other providers without public tokenizers, we apply calibrated scale factors based on empirical testing — typically accurate within ~5% for typical inputs.

You can paste plain text, source code, or JSON directly. You can also upload batch CSV, JSON, TXT, or LOG files up to 10 MB (10,000 rows) for bulk tokenization.

We use each provider's published per-token pricing and multiply by the token count for your text. Results show input cost, output cost, and total cost per model, with a "Best Value" badge highlighting the cheapest option for your input.

The Token Visualizer is a color-coded panel that shows exactly how the tokenizer splits your text into individual tokens. It helps you understand what drives token counts and how to optimize your prompts for efficiency.

The Optimize button is a client-side prompt compression tool. It scans your input and removes filler words ("actually", "basically"), overly polite phrases ("please provide me with…"), wordy constructions ("in order to", "due to the fact that"), and repetitive text — then compresses extra whitespace and blank lines. The result is a leaner prompt with the same meaning, which means fewer tokens and lower API costs. After optimization, a stats bar shows the percentage saved and estimated monthly dollar impact.

No. The optimizer only removes semantically redundant filler — polite preambles, hedge words, and wordy phrases that add tokens without adding meaning. Core instructions, data, and structure are preserved. You can always undo changes with Ctrl+Z or re-type your original prompt.

We accept .csv, .json, .txt, and .log files up to 10 MB. The file is streamed and tokenized entirely in your browser — nothing is uploaded to any server.

Providers like Anthropic, Gemini, Mistral, and Alibaba don't publish their tokenizers. We use empirically calibrated scale factors (e.g., 1.07x for Anthropic, 1.05x for Gemini) that produce estimates accurate within ~5% for typical inputs.

Yes. After the first load, the app can work offline since all processing is client-side. Your browser caches the necessary resources so you can use the tool without an internet connection.