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Software · Utilities & files

Borg ER-3

Borg ER-3 is a software synthesiser, available on Linux.

  • Completely free
  • Linux
  • Open source

At a glance

All of Borg ER-3 is free: no feature is locked behind a paid plan, and its code is open.

Its licence (MIT) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

  • Open source code
  • Commercial use allowed

About

Fixed-state modular synthesizer using FART oscillators, if you can hold back the chuckles for a moment stands for Frequency, Amplitude, Resolution, and Transformation oscillators, the resolution regards harmonic resolution and transformation regards the wave-shape being produced by the oscillator. The envelope can be clicked and dragged into any shape, the biquads can be manually configured on a per coefficient basis, they are executed in sequential order so BIQUAD 1 executes first. Exported files save to ~/EXPORTS/Borg_ER-3/

Description from Flathub — AppStream (Flathub)

Sources and checks

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

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