Nothing you paste is stored, logged, or sent anywhere. The repair runs in memory on this server and is gone the moment the response is returned — no database, no files, no analytics.

The repairer runs x12-tidy once, feeds the cleansed output back in, and repeats until the result is clean or stops changing. Most interchanges settle in one or two passes; this number just caps a payload that never settles (1–25).