Combine two JSON files into one. Nested objects merge automatically — nothing leaves your browser.
Matching keys are combined recursively. If both files have an object at the same key, their contents are merged together instead of one replacing the other.
File B's value wins for plain values and arrays. Only nested objects are merged deeper rather than overwritten.
No. Everything runs locally in your browser using JavaScript. Your JSON is never sent to a server or stored.
Not yet — this first version supports two files. Support for merging multiple files is planned.