NI DIAdem alternative · AVL Concerto alternative

Professional test data analysis.
Your data stays with you.

MDF, TDMS, and 28+ formats. AI-native analysis. Batch reporting. 1/10th the cost of DIAdem or Concerto — and your files never leave your machine.

Free forever for local use. No credit card required.

Supported formats

MDF/MF4TDMSHDF5NetCDFParquetMATLABCSVExcelSQLiteFeather+18 more

Everything a test engineer needs

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Your data stays with you

Zero-knowledge encryption. Even we cannot read your files. Your IP never touches our servers.

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AI built in

Ask questions about your data in plain English. Works with Claude, GPT, Gemini, or a local model — your choice.

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28+ file formats

MDF/MF4, TDMS, HDF5, NetCDF, Parquet, MATLAB, CSV, Excel and more. No converters needed.

Built for speed

LTTB downsampling renders 1M+ point signals instantly. Polars-powered processing that leaves pandas behind.

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Batch reporting

Auto-generate PPTX/Word reports across 40 files in one click. Share results via a secure link — no email attachments.

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Cloud sync

Workflows, sessions, templates and channel configs sync encrypted across all your machines.

Why engineers switch to Vizalyze

All the analysis power. None of the enterprise overhead.

FeatureNI DIAdemAVL ConcertoVizalyze
Price$2k–4k/seat€10k–50k/seatFree – $65/seat/mo
AI analysis✓ Multi-provider
MDF/MF4 supportLimited✓ Full asammdf
TDMS support✓ NativeLimited✓ Native
Your data stays local✓ Always
Cloud sync✓ Encrypted
Non-NI hardwareLimitedAVL only✓ Any source

Start for free today

Full desktop app, all formats, local analysis — no credit card, no time limit. Upgrade when you need cloud sync or team features.

Download Vizalyze free