TokenWise is a lightweight desktop GUI tool for bidirectional conversion between JSON and TOON, built for developers who want to visually analyze and experiment with LLM token usage.

It allows you to paste structured JSON data, convert it into a compact TOON representation, and instantly compare token counts, size reduction, and reversibility in real time. TokenWise is ideal for prompt engineers, researchers, and developers testing token-efficient formats before integrating any solution into real pipelines.

This project is currently intended to be compiled from source, making it a developer-focused tool rather than an end-user consumer app. It works best as a local experimentation and inspection tool for:

• Prompt and context size optimization

• Token usage analysis

• Dataset formatting experiments

• Research, demos, and offline testing

Built using Go and Fyne, TokenWise delivers fast, cross-platform performance with a clean and minimal interface.