API Chat Client Application "TmCGPT Debugger"

Hi, I’ve developed a simple chat client application compatible with the ChatGPT API.
It supports Windows 10 and later, as well as macOS.


  • Vertical 5-pane text editor
    Designed for easy construction of prompts by cutting and pasting text.

  • Import of web service version logs
    Log in with your ChatGPT account to import logs from the web service version. Even if the chat length has reached its maximum, you can continue the conversation semi-permanently after importing. (The application has a feature to automatically compress and retain old conversation history in the background.) Also, PLUS members can use the fast GPT-3.5 model directly in the built-in browser. Logs are stored locally in a database and can be searched by full-text search.

  • Preset phrase function
    Register frequently used phrases such as “Please translate ~ into English in several patterns,” “You are a professional editor,” or “Please summarize the following text within 300 characters,” and insert them into the editor.

  • Text editor history
    Automatically saves up to 200 histories of sent sentences for reusing and fine-tuning prompts.

  • API option
    settings All API options for Chat models can be adjusted via the GUI.

I only have an older Mac, so I haven’t been able to test it on newer Macs like Silicon Macs. I’d appreciate it if you could let me know if there are any issues.

I developed it using AvaloniaUI to support multiple platforms.