OTDR Master

OTDR Master opens OTDR trace files in the browser on Windows, Mac, Linux or a phone. It reads Bellcore/Telcordia .sor from any instrument, .msor, EXFO and Anritsu .trc, EXFO .bdr and .trcx, VIAVI .csor, Fluke .tst, INNO and Wavetek files, and zip, 7z or rar archives of traces. You see the trace and the event table as the instrument recorded them, measure a section with cursors (2-point or LSA), check thresholds, edit events and header fields, save any trace as a standard .sor, and download a PDF report or send a link.

All of that is free and needs no account. A free email sign-in adds a report with a QR code and link, CSV export, a report on one fibre from both ends, and a project. The paid Professional plan ($14.97 a month or $119.88 a year) is for whole cables: unlimited projects, a summary sheet plus a sheet per fibre, Excel export, batch edits across files, your own report template with a logo, and a check of every fibre against the drum's factory data. Reports are unlimited on every plan. The interface is in 15 languages.