Inspecting large, deeply-nested JSON files in a text editor can be particularly cumbersome and not very effective. This Linux terminal tool provides an alternative by reflecting the tree structure of the input data in the interface itself, which consists of a hierarchical multi-column browser.The inspiration for this is the "Miller column" technique used in applications such as macOS Finder or the ranger file browser.
I hope you find it useful, especially for tasks like inspecting large structured logs.