| NBIDSLIB | BIDS dataset reading, writing, path construction, and sidecar metadata handling for iEEG/EEG/MEG |
| NCOMLIB | Real-time client/server communication (commands, raw data streaming) |
| NCONNLIB | Functional connectivity metrics (coherence, PLV, cross-correlation, etc.) |
| NDISP3DLIB | 3-D brain visualisation using the Qt RHI rendering backend |
| NDISPLIB | 2-D display widgets and visualisation helpers (charts, topography, colour maps) |
| NChannelInfoModelRoles | |
| NEvokedSetModelRoles | |
| NDSPLIB | Digital signal processing (filtering, spectrograms, real-time averaging, HPI, noise reduction) |
| NFIFFLIB | FIFF file I/O and data structures (raw, epochs, evoked, covariance, forward) |
| NFSLIB | FreeSurfer surface and annotation I/O |
| NFWDLIB | Forward modelling (BEM, MEG/EEG lead fields) |
| NINVLIB | Inverse source estimation (MNE, dSPM, sLORETA, dipole fitting) |
| NLSLLIB | Lab Streaming Layer (LSL) integration for real-time data exchange |
| NMATHLIB | Mathematical algorithms and geometry (linear algebra, optimization, spectral estimation) |
| NMNELIB | Core MNE data structures (source spaces, source estimates, hemispheres) |
| NMRILIB | MRI volume and coordinate-system I/O (volumes, voxel geometry, transforms) |
| NRTPROCESSINGLIB | |
| NSURFACEKEYS | Centralised string constants for surface map keys |
| NUTILSLIB | Shared utilities (I/O helpers, spectral analysis, layout management, warp algorithms) |