Privacy-first token counter for text, code & files.
What is TokenCalculator.dev?
TokenCalculator.dev is a privacy-first, 100% browser-based LLM token counter and API cost estimator. It measures text prompts, codebases, local documents (PDF, DOCX), and vision workloads (PNG, JPEG, WebP, GIF) across OpenAI, Claude, Gemini, and DeepSeek with zero server uploads.
