Open a TDMS file without LabVIEW
Drop a .tdms file here, with its .tdms_index if you have one.
The file is read in this browser tab. It is never uploaded.
Not supported: DAQmx raw data, ExtendedFloat and FixedPoint channels, arrays of dimension other than 1. They are reported, and the rest of the file stays readable.
Nothing to install
TDMS is the file format LabVIEW and DIAdem write measurements in. This page reads it in the browser: drop the file above to see its groups, channels and properties, plot the channels and export them to CSV or Parquet. It needs a recent Firefox, Chrome, Edge or Safari, so it works on macOS and Linux as well as Windows, and on a computer where you cannot install software.
The file stays on your computer
The file is read in this tab and is never sent anywhere. After a first visit the page works with the network cut: turn off Wi-Fi, reload, and open the file again. The security page explains how to check it yourself.
The .tdms_index file
LabVIEW often writes a .tdms_index file next to the .tdms file. It only speeds up
reading. Drop both together to use it; without it, the .tdms file is scanned and opens just the same.
What it does not read
DAQmx raw data, ExtendedFloat and FixedPoint channels, and arrays of dimension other
than 1. They are listed as not supported, and the rest of the file stays readable. Files are never written or
modified.