TokenCalculator.dev
Privacy-first token counter for text, code & files.
About TokenCalculator.dev
What TokenCalculator.dev does
AINave analysisEstimates how many LLM tokens a prompt, codebase, document or image will use and what that costs across several model providers.
- Best for
- Developers building with LLM APIsEngineers estimating AI usage costs
- Use it to
- Counting tokens in text prompts before sending them to a model
- Measuring token usage across a codebase
- Estimating token counts for local PDF and DOCX documents
- Estimating token counts for vision inputs such as PNG, JPEG, WebP and GIF images
- Comparing estimated API costs across OpenAI, Claude, Gemini and DeepSeek
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