FormatTools

About

Every AI engineer is familiar with the frustration: during debugging, you log a prompt and it appears in your console as a single, endless escaped line, littered with \n characters, with JSON compressed inline and all system, user, and assistant turns jumbled together. It becomes completely unreadable. FormatTools solves this precise problem. Paste the chaotic text on the left, and receive a neat, color-coded conversation on the right, with roles clearly separated, newlines properly restored, and inline JSON beautifully formatted. It is compatible with OpenAI, Claude, and other LLM APIs. The tool runs entirely in your browser, so no data is ever uploaded.