Reads a JSON value either from standard input or from the first command line argument. Shows a window with that value. For arrays, only indicies are shown, allowing to right click on them. For objects, only keys are shown, allowing to right click on them. File name in Acme reflects location in the JSON value.
License: MIT.
Example: echo 123 | JSON.
Example: JSON 123.
Video example: in the source repository, see example.mp4.