Token Counter & Estimator
Count tokens, compare current GPT, Claude, Gemini, and DeepSeek models, and forecast API costs with output, caching, batch, and volume controls.
More
Related tools
Prompt Template Filler
Fill in {{variables}} in any AI prompt template instantly online, for free. Open the resolved prompt directly in ChatGPT with one click.
AI Code Explainer
Paste any code snippet and get a plain-English explanation instantly, powered by AI. Free tool for understanding unfamiliar code in any language.
AI Text-to-SQL Generator
Describe the query you need in plain English and get a ready-to-use SQL statement, powered by AI. Free tool with dialect support.
AI Error Message Explainer
Paste any error message or stack trace and get a plain-English diagnosis with a suggested fix, powered by AI. Free, no sign-up.
Frequently asked questions
What is Token Counter & Estimator?+
Plan prompt size and API spend across current AI models — entirely in your browser.
How do I use Token Counter & Estimator?+
Compare current OpenAI, Anthropic, Google, and DeepSeek models side by side. Forecast input and output costs per request, day, and month. Simulate prompt caching, Batch API discounts, and request volume. Check context-window fit, max output, words, characters, lines, and token density. Bundled OpenAI tokenizer for exact plain-text encoding; transparent local estimates for other providers. Pricing is dated and linked to official provider sources; nothing you paste is sent anywhere
Is Token Counter & Estimator free?+
Yes, Token Counter & Estimator is completely free. No account or sign-up required, and all processing happens in your browser — nothing is sent to a server.
Is my data safe when I use Token Counter & Estimator?+
Yes. Token Counter & Estimator runs entirely in your browser using JavaScript and Web APIs — your input is never uploaded, transmitted, or stored on any server.