Your test data, analyzed and shared without a license — right in the browser.
Open a TDMS, MF4, BLF or CSV file in seconds, re-run your Python scripts, and invite a customer or supplier into the project — with nothing to install and nothing for them to pay.
Free plan, no card. Your files open in seconds · your data hosted in Europe.
Every test domain: mechanical · thermal · electrical · batteries · energy · aerospace · rail · labs.
What you open in NeydFlow.
Your channels synchronized, the real value under the cursor, the GPS track on the map — right in the browser, with nothing to install.
The exact value under the cursor.
Zoom in and NeydFlow loads the real points of the range on screen. The banner on each plot switches from “Decimated data” to “Full-resolution data”: no approximation, the actual measurement — on channels of several million points.
Three things traditional test tools don't do.
Share without a license
Invite a customer, a supplier or your team into the project. They review and sign off in the browser — no license, no desktop tool, no screenshots.
Your Python, not ours
Import your existing Python scripts and packages and re-run them on your tests. Where traditional tools can't pick up your code.
From cloud to self-hosted
Evaluate online, then deploy the same product on your own infrastructure when you're ready — all the way to air-gapped.
Great analysis tools, built before results had to travel.
Measurement formats are locked inside three or four desktop applications per organization: Windows, licenses, no collaboration across sites.
Your customers can't open native files
They'd need the desktop application, the license and the workstation to match.
Your partners pay for licenses
Just to look at a measurement you send them.
Your managers wait on exports
Results travel as screenshots and slides, never up to date.
Load, harmonize, process, visualize and share your test data.
Any file
Drop the file from the bench or the vehicle — it opens in seconds.
Any channel, instantly
Wildcard filter, groups, hundreds of channels without lag.
Your way
Portable formulas or Python scripts, run on your data.
The real values
Not an approximation: the actual value under the cursor.
Correlate your tests
Overlay several runs and datasets on the same plot.
To your tools
Export and an API to wire NeydFlow into the rest of your chain.
Test data formats read in your browser: MF4, TDMS, BLF, CSV.
Open your file for free. Your bench's native format, read in the browser — drop it, plot the channels. No desktop license.
BLF decoded by DBC
CAN .blf logs decoded by your .dbc files — named signals, ready to plot.
CSV / ASCII wizard
Separator, decimal and units detected; the mapping is saved as a profile and reused on every file from the bench.
More formats
A proprietary format you need to read? Tell us.
Your calculations. Your Python code. Your data.
Portable formulas that bind to any dataset, with no hard-coded channel names. Or your own Python scripts and packages, run in isolation on your measurements.
- Channel Reference System: one formula, all your datasets.
- Full Python scripts in an isolated sandbox.
- Import an existing Python package and re-run it.
- One layout, all your campaigns.
Your data stays where you want it.
European cloud
Hosted in Europe by default. Nothing to administer.
Self-hosted IN DEVELOPMENT
On your own infrastructure, including air-gapped. Design partners welcome.
For the lone engineer and for the whole team.
Create your account directly — open sign-up, no invitation needed.
Free
- Import your files, tight limits
- Visualization and export
- Demo datasets included
Standard
- 14-day free trial (card required)
- Formulas and Python scripts
- Shared projects
- No commitment, cancel before day 15
Teams & Enterprise
- RBAC, audit logs
- Self-hosted and air-gapped
- Dedicated success manager
See NeydFlow on your own data.
- 30 minutes with a test engineer, not a salesperson.
- We open your files and formats, live.
- We answer your security, hosting and self-hosting questions.
Your questions, answered.
Which formats can I import?
Native support for MDF4 (.mf4), TDMS, CSV, ASCII text files, Excel, CAN BLF logs decoded by your .dbc files, plus GPS formats (GPX, FIT, TCX). The ASCII wizard maps and reuses the structure of almost any text file. More formats on request.
Do my collaborators need to install anything?
No. NeydFlow runs entirely in the browser. Anyone you invite creates a free account in seconds and opens the shared project with the rights you grant them — no license, no desktop tool, no native viewer. They work within the limits of their own plan.
Where is my data hosted?
On our European cloud by default. A fully self-hosted deployment on your own infrastructure, including air-gapped, is in development — design partners welcome.
Can I write my own formulas and scripts?
Yes. The Channel Reference System lets you write portable, Python-powered formulas that bind to any compatible dataset — with no hard-coded channel names. You can also run full Python scripts and packages on your data.
How is NeydFlow different from traditional test tools?
NeydFlow runs in the browser, with no license and no install: you share a project and your customer or supplier opens it for free. You import and re-run your own existing Python scripts and packages. And it's the same product from cloud to self-hosted. Traditional test tools are desktop, licensed per seat, and don't pick up your existing code.
How much does it cost?
The Free plan is permanent and needs no card. The Standard plan is €19/month with a 14-day free trial (a card is required to start the trial, the first charge is on day 15, and you can cancel before then). For a team or a self-hosted deployment, pricing is custom — book a call.
Open your first file today.
Free plan, no card, in the browser. Your data stays yours.