◆ Caterpillar datalogs · in-browser

Overlay Caterpillar datalogs on one time axis

Load Caterpillar engine and controller datalogs and overlay every channel — RPM, boost, timing, exhaust temps, fault flags — on a single shared timeline. Parsed privately in your browser, nothing uploaded.

The demo runs on built-in sample telemetry. Buy a license to load your own logs.

Reading Caterpillar datalogs, without the friction

Caterpillar engines and gen-sets produce dense datalogs, but reading them one file at a time hides the story. Overtrace auto-detects the Caterpillar format the moment you drop a file in, parses every channel, and plots them together so you can see cause and effect across the whole event.

Because parsing happens entirely in your browser, there is no upload, no account provisioning, and no waiting on IT. Open a log on your laptop in the shop or on a tablet in the field and start comparing channels in seconds.

CAT ET exportsECM datalogsGen-set controller logsCSV / Excel exports

What people use it for

Chase a fault across channels

Line up a derate or shutdown fault against RPM, boost, and exhaust temp on the same axis to see what led up to it — not just the code.

Compare two runs

Overlay a good run and a bad run of the same CAT unit to spot exactly where the traces diverge.

Correlate engine to skid

Bring in a Caterpillar engine log next to a compressor or skid log and align them on time to see the whole package behave as one.

Caterpillar datalog FAQ

Can Overtrace open Caterpillar datalogs?

Yes. Overtrace auto-detects Caterpillar datalog exports and parses every channel automatically — no manual column mapping. Just drop the file in.

Do I need Caterpillar ET or special software?

No. Overtrace runs in any modern browser. You export or save your Caterpillar datalog as usual, then open it directly in Overtrace to view and overlay the channels.

Is my Caterpillar log uploaded anywhere?

No. All parsing happens locally in your browser using a Web worker. There is no upload endpoint — your CAT logs never leave your machine.

Can I overlay a Caterpillar log with a compressor or Waukesha log?

Yes. That's the core of Overtrace — load logs from different modules and different vendors, then overlay and time-align them on one shared axis.

Open a Caterpillar log right now

Try the demo on sample telemetry, then load your own Caterpillar logs with a license. Nothing is uploaded — it all runs in your browser.