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Software · Audio & music

Qsynth

Qsynth is a software synthesiser, available on Linux: MIDI support.

  • Completely free
  • Linux
  • Open source

Overview

Qsynth is a software synthesiser, available on Linux. Other documented uses: music production.

Features described on its official website: MIDI support.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Qsynth is a simple Qt application wrapper for the fluidsynth software MIDI sequencer for Linux.” — official website, 10 November 2026
  • “Qsynth is a simple Qt application wrapper for the fluidsynth software MIDI sequencer for Linux.” — official website, 10 November 2026
  • “Eventually it may evolve into a softsynth management application allowing the user to control and manage a variety of command line softsynths.” — Flathub, 10 November 2026

At a glance

Qsynth 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

Qsynth is a fluidsynth GUI front-end application, written in C++ around the Qt framework, using Qt Designer. Eventually it may evolve into a softsynth management application allowing the user to control and manage a variety of command line softsynths.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Last technical check: 7 November 2026
  • Description from Flathub — AppStream (Flathub)

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