OTDR MASTER
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OTDR traces, in the browser.

Files from any OTDR — both .sor generations, .msor, both .trc dialects, Yokogawa, INNO — open, get measured, edited and saved right here. No install, no sign-up.

Try it How it works
Drop an OTDR file here — it opens right away .sor · .msor · .trc · more — or browse your disk Release the file — opening it it opens in this very window
Рабочее окно просмотра: файл demo_1550.sor, 1550 нм. Оптическая длина 46.8120 км, сквозные потери 11.574 дБ, возвратные потери 32.400 дБ. Кривая на весь диапазон с отметками событий и счётчики «оба 12, прибор 2, мы 2» — сколько событий нашли и прибор, и мы, сколько только прибор, сколько только мы.

If an OTDR wrote it, it opens here.

Every format was worked out from real instrument files, not from a spec sheet. Bring yours — if it doesn't open, we'll teach the service to read it.

.sor — both generations

Bellcore 1.x and Telcordia 2.x, with the EXFO, Yokogawa, VIAVI, Anritsu and Russian-instrument dialects. An extension-less file from Anritsu software is .sor too.

.msor — multi-wavelength

Both wavelengths out of one file, overlaid on a single chart — the way EXFO and VIAVI write them.

.trc — three dialects, and .bdr

Three incompatible formats behind one extension: the EXFO container, Anritsu T5 from CMA4000 and its successor T6. We tell them apart by content and read all three. EXFO’s bidirectional file opens too: every fibre arrives as two traces, A→B and B→A.

Yokogawa

The nested SOR of the AQ-series instruments — files that open in nothing but the vendor software — read here as plain .sor.

INNO, SmartOTDR, Fluke and Wavetek

INNO View 6/7, SmartOTDR’s encrypted .csor, .tst from Fluke OptiFiber and OptiFiber Pro and .TFW from Wavetek and Acterna instruments open read-only, like the rest of the imported formats.

A file that wouldn’t open?

Send it to ilya@cheredin.ru — we’ll take the format apart on your own file and teach the service to read it.

From the OTDR's USB stick to a finished file.

Nothing to install. All you need is a browser and a measurement file.

See the interface

  1. 01

    Open the files

    Drag them in as a batch — a single trace or a whole day's span. The format doesn't matter: see the list above.

  2. 02

    Look and measure

    Events, loss, reflectance, A/B cursors with two methods, and a verdict against your own thresholds — on one screen.

  3. 03

    Tidy it up

    Site, cable, fiber, operator, events and the curve.

  4. 04

    Save as .sor

    A foreign format leaves as plain .sor — it opens in any software, including your customer's.

  5. 05

    Share a link IN THE WORKS

    The file opens in the recipient's browser — no install, no sign-up.

What works today, and what we're still writing.

We'd rather you didn't find this out after paying, so the list is split.

WORKS TODAY

  • Open a file from any instrument: both .sor generations, .msor, both .trc dialects, Yokogawa, INNO
  • Find events independently, and show what the instrument found against what we found
  • Measure a span with A/B cursors, two methods side by side, and see the deviation
  • Edit metadata, events and the curve
  • Check against the thresholds you set, with overruns marked
  • Save as .sor — it opens in any software

IN THE WORKS

  • Share a trace by link
  • A drum's fiber register
  • Measured values checked against the cable's datasheet
  • Reports in your customer's template
  • Projects, spans and roles for a crew

Order and dates on request — we build exactly in this order.

One file — complete and free.

Open it, view it, fix it, save it as .sor. No sign-up. Paid will be about volume — we'll name the price when the tier ships.

Try it