Console
Quantitative Susceptibility Mapping
in your browser
A complete QSM reconstruction pipeline that runs entirely on your machine.
No installation. No servers. No data uploads. Load your MRI phase data, choose your algorithms, and generate susceptibility maps — all client-side using WebAssembly.
Powered by QSM.rs · WebAssembly · Private by design
Why QSMbly?
Completely private
Your data never leaves your device. All processing happens locally, so there's no need to de-identify scans first.
Zero installation
No Python, MATLAB, or Docker. Just open the page — the whole pipeline is compiled to WebAssembly.
20+ algorithms
A full pipeline: phase unwrapping, background field removal, and dipole inversion — mix and match to suit your data.
Interactive
Inspect every stage with a built-in NiiVue viewer. Adjust masking and contrast and see results in real time.
How it works
Load data
Drop DICOM or NIfTI magnitude and phase images — or load the bundled example dataset.
Set parameters
Enter echo times and field strength. These auto-fill from JSON sidecars when available.
Mask & configure
Generate a brain mask and pick an algorithm for each pipeline stage.
Run & explore
Reconstruct your susceptibility map and explore every intermediate result.
The same engine as QSMxT
QSMbly runs the exact reconstruction algorithms as QSMxT, the BIDS-native command-line QSM toolbox. Both are powered by the shared QSM.rs Rust core. Experiment here in the browser, then scale up to QSMxT for batch processing on your own machine.