Unless I'm mistaken, Dn-Famitracker does not have JSON export, which is a feature in 0CC-Famitracker. Here are side-by-side screenshots of Dn-Famitracker and 0CC-Famitracker:

JSON export is a very handy feature because it's easily parsable by scripts. This facilitates, for example, converting a famitracker module into an engine-specific format.
Unless I'm mistaken, Dn-Famitracker does not have JSON export, which is a feature in 0CC-Famitracker. Here are side-by-side screenshots of Dn-Famitracker and 0CC-Famitracker:
JSON export is a very handy feature because it's easily parsable by scripts. This facilitates, for example, converting a famitracker module into an engine-specific format.