Qsynth

You operate FluidSynth via a graphic window and play SoundFonts.

Version 1.0.6 · Open source · Linux

Looking for an alternative to Qsynth?Compare Qsampler.Compare alternatives

Qsynth forms the interface around FluidSynth. You load SoundFonts and configure MIDI and audio connections to display notes as sound.

You need FluidSynth and a useful SoundFont. The sound quality depends on that library.

Get more from Qsynth

A SoundFont contains the sounds that the synthesizer can play. Therefore, first select a suitable library and check which MIDI input and audio output you are using. Without correct routing, a working synthesizer can remain silent.

Carefully adjust level and buffer settings to avoid override or interruptions. The quality of the sound depends heavily on the chosen SoundFont. Also save the license data of libraries when you want to distribute recordings.

Version and updates

Version 1.0.6. Released on 01-06-2026. Qsynth 1.0.6 starts the next development cycle with Qt 6.11 or newer. Build yourself from source code, then your development environment has to be connected. The release does not announce a new synthesizer engine.

Which software suits you?

Compare Qsynth with alternatives

With a virtual instrument, the underlying engine determines which sound files you can use. Compare the sample format, MIDI input and audio connection to your system. A graphic control is not a guarantee that a sound library from another sampler works without conversion.

Differences between Qsynth and Qsampler
Software	What can it do?	Platform and licence
QsynthYou are viewing this app	You operate FluidSynth via a graphical interface and load SoundFonts for MIDI view. You choose the MIDI and audio connections that fit your system.	LinuxOpen source
QsamplerView this alternative	You load and manage tools in LinuxSampler via a graphical interface. The supported libraries and engine settings differ from FluidSynth.	LinuxOpen source

Choose an alternative to explore its features, system requirements and download options.

Who is it for?

You want to use SoundFonts via FluidSynth.

Getting started

Install Qsynth and FluidSynth, load a SoundFont and choose MIDI input and audio output. Test one note before making a larger configuration.

Privacy

Local MIDI and audio data remain in your chosen audio connections.

Good to know

External sound bench required. Configure audio and MIDI.

Please note

Install FluidSynth and choose a legally available SoundFont.

Advantages

Graphic FluidSynth Control Use SoundFonts Open Source

Things to consider

External sound bench required Configure Audio and MIDI

Download Qsynth

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Official download page

Provider’s website · qsynth.sourceforge.io

Download Qsynth

Version history

1.0.6 1 Jun 2026

You'll get an updated Qt building base.

Qsynth 1.0.6 starts the next development cycle with Qt 6.11 or newer. Build yourself from source code, then your development environment has to be connected. The release does not announce a new synthesizer engine.

Report a new version

Our verdict

Qsynth is useful if you want to play a MIDI keyboard or file with SoundFont sounds. First check MIDI input and audio output separately. A missing sound can be in the connection, not in the notes. For recording and arranging, you also use a sequencer or audio program.