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Software · 3D, CAD & electronics

xnec2c

A multi-threaded EM tool based on NEC2 to model antenna radiation patterns.

  • Completely free
  • Linux
  • Open source

At a glance

xnec2c is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-2.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

Xnec2c is a high-performance multi-threaded electromagnetic simulation package to model antenna near- and far-field radiation patterns for Linux and UNIX operating systems. The original FORTRAN version of NEC2 was ported to C by Neoklis Kyriazis, 5B4AZ and released as nec2c. Later he wrote xnec2c, a graphical interface for ease of use with many more features.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 8 November 2026
  • Description from Flathub — AppStream (Flathub)

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