Vizalyze opens TDMS, TDM, MDF4, CAN/LIN and 31+ formats directly - no NI hardware, no VBScript macros, no per-seat annual licensing. Windows, macOS and Linux.
Windows · macOS · Linux · No credit card · 14-day trial of every pack
NI DIAdem is a data analysis and report generation tool from National Instruments (part of Emerson), widely used across test and measurement labs to post-process TDMS/TDM files from LabVIEW, FlexLogger, CompactRIO, and PXI-based data acquisition systems.
It's a capable, established tool. But it runs on Windows only, is built around the wider NI hardware and software ecosystem, and automation beyond its built-in workflows means writing VBScript or Python macros. Licensing is per seat, per year - Base and Advanced editions are sold separately, with volume discounts starting at five or more seats.
Vizalyze reads the same TDMS/TDM files - along with MDF4, HDF5, CAN/LIN and 31+ formats in total - in a single desktop app that runs anywhere, with no macros required for everyday analysis.
Same TDMS files. Different price, platform, and workflow.
| Category | NI DIAdem | Vizalyze |
|---|---|---|
| Platform | Windows only | Windows, macOS, Linux |
| Licensing | $666–$1,407 per seat / year | $49/mo Pro + $99 one-time format pack |
| Custom automation | VBScript or Python macro | Point-and-click - no code |
| AI-assisted analysis | Not built in | Built-in Axy AI |
| Batch report generation | Script-driven export | Pro: one-click PPTX/PDF |
| Ecosystem | Built around NI hardware/software | Standalone - any TDMS/MDF4 file |
| Share results | Manual export / email | Secure link, no raw-data upload |
| Setup | Install, NI account, license activation | Download and open |
DIAdem pricing reflects published Base/Advanced per-seat annual list prices at time of writing; check ni.com for current pricing.
Full TDMS/TDM coverage plus the tools you'd normally script yourself.
Open TDMS and TDM files from LabVIEW, FlexLogger, CompactRIO, PXI DAQ systems and other NI data loggers - plus MDF4, HDF5, CAN/LIN and 31+ other formats in the same app.
Windows, macOS or Linux. No NI account, no hardware dependency, no VBScript required for everyday analysis.
FFT, PSD, STFT/spectrogram, Butterworth/Chebyshev/Bessel IIR filters, smoothing, curve fitting - all with live chart preview. No macro scripting.
Describe what you want to know in plain English. Axy identifies anomalies, finds correlations, and summarises test results. Use built-in AI or your own API key.
Overlay multiple TDMS or MDF4 files with automatic time alignment and resampling. See per-channel statistics and deltas to spot regressions instantly.
Pro: auto-generate PPTX or PDF reports across dozens of files in one click - no report-generation macro to write or maintain.
Your TDMS/TDM files are never uploaded. Everything runs on your machine. Cloud sync (Pro) only syncs your workflows and templates - never raw signal files.
Team: WLTP, Euro 6/7, EPA FTP-75, SAE J1634 and 14 more - with ISO 17025-style lab metadata and Pass/Warn/Fail KPI assessment built in.
NI DIAdem is a data analysis and report generation application from National Instruments (part of Emerson), widely used to post-process TDMS/TDM measurement files from LabVIEW, FlexLogger, CompactRIO, and PXI-based data acquisition systems.
Yes. Vizalyze reads TDMS and TDM files directly - including files logged by LabVIEW, FlexLogger, CompactRIO, and other NI data acquisition hardware - with no NI software or account required.
No. Vizalyze is a standalone desktop application. It reads the TDMS/TDM file format directly, so you can open files produced by NI hardware without installing any NI software.
Every new account starts with a free 14-day Team trial - every feature and all five extension packs, no credit card. After that the free tier keeps working with no time limit on core tabular formats (CSV, Excel, delimited text, PDF tables). TDMS/TDM/LVM are part of the Lab & Instruments pack and MDF/MF4 part of the Automotive & EV pack - $99 one-time each, usable on any tier including free; Team includes all five. Signal processing (FFT, IIR filters), batch reporting, and cloud sync require Pro.
Yes. Unlike DIAdem, which is Windows-only, Vizalyze runs natively on Windows, macOS, and Linux.
No. Vizalyze is local-first: your raw TDMS/TDM files are never uploaded. All processing runs on your machine. Cloud sync (Pro) only syncs your workflows and templates, never raw signal files.
Free 14-day trial of every feature and all five extension packs. No credit card. TDMS and MDF/MF4 live in $99 one-time packs - usable on any tier.
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