GUI alternative to asammdf · Open MDF4 files without writing Python
A desktop app for MDF/MF4, TDMS, CAN/LIN and 31+ formats. AI analysis. Signal processing. Standards-aligned workflows. Batch reporting. No code needed. Raw data stays local.
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Core formats free · 5 extension packs
From raw signal to finished report - on your machine, in minutes.
Local-first by design. Raw data stays on your machine unless you explicitly choose to share. When using Axy AI, only channel names and summary statistics are sent to your AI provider - never raw signal files. Cloud sync encrypts everything before upload.
Ask Axy about your signals in plain English. Use our built-in AI or bring your own Claude, GPT, Gemini, Ollama or LM Studio key. Free users get 10 hosted queries/day; BYOK is always unlimited.
MDF/MF4, TDMS, HDF5, NetCDF, Parquet, MATLAB, CSV, Excel, mzML, Gamry DTA, Zahner EIS and more. Core formats free; specialist formats via extension packs. Content-based detection identifies vendor formats even with wrong or missing extensions.
Designed for million-point signals with LTTB downsampling and Polars-powered processing.
Pro: auto-generate PPTX/PDF reports across 40 files in one click. Share results as a secure link - no email attachments.
Decode CAN/LIN bus logging in MDF/MF4 files with DBC, ARXML, KCD and SYM databases. Built-in EV signal presets.
Pro: FFT, PSD, STFT/spectrogram, IIR filters (Butterworth, Chebyshev, Bessel), smoothing, curve fitting and integration - all with live chart preview. Processed signals feed directly into the Analysis Dashboard.
Run t-tests, ANOVA, correlation and linear regression directly in the Analysis Dashboard. Extrapolate trends forward - ask 'when does Y reach target?' with a 95% confidence band. No code needed.
Overlay multiple test runs with automatic time alignment and resampling. Spot regressions with per-channel statistics and deltas.
Team: WLTP, Euro 6/7, EPA FTP-75, SAE J1634, ICH Q1A, USP and 13 more - with ISO 17025-style lab metadata and Pass/Warn/Fail KPI assessment.
Pro: watch CSV, TDMS, MDF and SQLite files as data streams in during an active test. Real-time SPC, Cp/Cpk, anomaly overlays and cloud KPI push.
Pro: workflows, sessions and templates sync encrypted across all your machines. Your passphrase, always. Data never touches our servers unencrypted.
Track every load, transform, filter and merge with a full provenance graph. Reproduce any prior result without guessing what changed.
Use Vizalyze in English, German, French, Brazilian Portuguese, Simplified Chinese, Italian, Spanish, Korean, and Japanese. Global and per-file locale settings handle decimal separators, CSV delimiters, and date/time formats for mixed-region datasets.
Real UI captures using bundled synthetic demo data - reports, Power Mode, CAN decoding, NVH tools, pivot summaries, and more.
Step-by-step narrated video tutorials with real-time app navigation. Master import, charting, signal processing, and batch automation.
Follow a complete end-to-end workflow in Vizalyze: launching Basic Mode, file loading, channel browser search, chart creation, signal inspection, Data Health audit, Compare Runs, and Report Builder.
All the analysis power. A fraction of the cost vs DIAdem, AVL Concerto, or MATLAB. Your data on your terms.
| Feature | NI DIAdem | MATLAB | AVL Concerto | Python+Jupyter | Vizalyze |
|---|---|---|---|---|---|
| Price | $3k–6k/seat/yr | $150+/mo + toolboxes | Enterprise seat | Free (DIY) | Free – $89/seat/mo |
| Ready out of the box | ✓ | Weeks of scripting | ✓ | Hours of setup | ✓ |
| AI-assisted analysis | ✗ | Requires AI Toolbox | ✗ | Custom LangChain | ✓ Axy built-in |
| MDF/MF4 support | ✓ | Via toolbox | ✓ Full | Via asammdf (manual) | ✓ Full asammdf |
| CAN/LIN decoding | ✗ | Via toolbox ($2k+) | ✓ Native | Via cantools (manual) | ✓ DBC/ARXML/KCD |
| Signal processing (FFT, IIR…) | ✓ | ✓ (expensive) | ✓ Calc engine | Scipy (manual) | ✓ Pro |
| 18 test standards (WLTP…) | Partial | ✗ | Automotive-only | ✗ | ✓ Team |
| Batch PPTX/PDF reporting | ✓ | Custom code | ✓ Templated | Custom code | ✓ Pro |
| Live test monitoring + SPC | Partial | ✗ | ✓ Testbed-native | Custom code | ✓ Pro |
| Your raw data stays local | ✗ (NI cloud) | ✓ | ✓ | ✓ | ✓ Always |
Comparison is indicative and based on commonly available product capabilities and pricing; exact configurations vary.
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Full desktop app with core formats and local analysis - free account required to download, no credit card, no time limit. Upgrade to Pro for signal processing, live monitoring, batch reporting and cloud sync.
Download Vizalyze - BetaWindows · macOS · Linux
Using asammdf?
Vizalyze wraps the same asammdf engine in a full desktop interface. Open MDF/MF4 files instantly, plot signals side by side, run FFT and IIR filters, decode CAN/LIN with your DBC files, and export reports - all without writing a single script.
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