Token Counter

Token Counter is a web-based utility designed to accurately measure token usage for text inputs, helping users work efficiently with token-based AI models and APIs. The tool allows you to paste or type content directly into the interface and instantly see token counts, character counts, and word counts, enabling precise control over prompt size and model limits. It supports multiple popular tokenization schemes used by modern large language models, so you can align your content with the specific requirements of different providers and model versions.

Key capabilities include real-time token calculation as you edit text, side-by-side comparison of different versions of a prompt, and clear visibility into how small changes affect total token usage. This is especially useful for prompt engineers, developers integrating AI into applications, technical writers preparing content for AI processing, and analysts managing API costs.