Download Nabla

Get the latest version of our electromagnetic FEM tool

Latest Release

Windows

  • Version 0.1.0 (Released: August 2026)
  • Installer, 64-bit · 156 MB
Download for Windows (64-bit)

Installs and runs as Nabla Free — no licence key needed. See pricing →
Want the full Machines module first? Start a 30-day trial →

One step during install: Nabla does not distribute the Triangle mesh generator, so a fresh install cannot mesh until Triangle is fetched. The installer has a Download Triangle page — press Download there rather than Skip. Installation guide →

SHA-256
4a4aa8b9d9c1c3fffe4250617763a96722b6a53ff1485c7ed059e2bf65f61244
Verify with certutil -hashfile Nabla_Setup_0.1.0.exe SHA256 in a Windows command prompt.

Linux

Coming soon

Installation Guide

Windows Installation

View Installation Guide

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Activation Walkthrough

Linux Installation

Coming soon

Previous Versions

Release Archive

Access previous stable releases and legacy versions for compatibility purposes.

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Nightly Builds

Coming soon

Version 0.1.0

New Features

  • Machines module: parametrised PMSM, induction and fractional-slot designs, inner- and outer-rotor, with winding, circuit and skew support
  • Thermal module: steady and transient heat conduction on the same mesh
  • Time-harmonic and Crank-Nicolson transient solvers
  • Second-order (quadratic) elements
  • Far-field (balloon) boundary condition for open problems
  • Multiple independent motion zones, rotary and linear
  • Nine ready-to-open example machines under Help → Examples
  • Python API and MCP server for scripted and agent-driven studies

Performance Improvements

  • Monolithic field-circuit solve replaces the staggered iteration
  • Large-mesh ceiling removed — meshes far beyond the previous ~130,000-node limit now solve
  • Faster induction-machine equivalent-circuit extraction

Bug Fixes

  • Airgap torque now uses the Arkkio volume integral, removing the mesh- and radius-dependence of the old single-contour form
  • Iron-loss post-processing corrected (previous builds over-reported)
  • Field energy, force and probe values read the element's own material instead of a nodal average across interfaces
  • Meshing now refuses a model whose sliding band or region seeds are mis-drawn, rather than solving it silently wrong

Documentation

  • Full user manual shipped with the application and published online
  • Nine documented worked examples with build scripts
  • Installation, activation and licensing walkthroughs