FluidSynth MIDI Synthesizer
Music & Audio In-app purchases
Turn your device into a FluidSynth synthesizer.
- Rating
- 3.7
- 1.1K ratings
- Downloads
- 238K+
- on Google Play
- Price
- Free
- In-app purchases
- Updated
- Oct 28
- 2025 · v2.0.35
Screenshots
About FluidSynth MIDI Synthesizer
NOTE: A SoundFont (.sf2) is required to use this synthesizer.
Plug your device to your computer, or hook a MIDI USB master keyboard via an OTG cable to play with this low-latency FluidSynth 1.1.9 based Synthesizer.
- load SoundFont 2 and 3 (Ogg compressed)
- record your performances directly in WAVE files
This application uses a modified version of FluidSynth, you can find the source code here https://github.com/VolcanoMobile/fluidsynth-android
Plug your device to your computer, or hook a MIDI USB master keyboard via an OTG cable to play with this low-latency FluidSynth 1.1.9 based Synthesizer.
- load SoundFont 2 and 3 (Ogg compressed)
- record your performances directly in WAVE files
This application uses a modified version of FluidSynth, you can find the source code here https://github.com/VolcanoMobile/fluidsynth-android
User reviews
Hooked it to my Yamaha piano, does what it says. Works great.
This app is the essence of simplicity. From what I see, it does nothing except perfectly render your MIDI input via the included SoundFont, or a SoundFont (SF2) that you find and load. I just wanted the equivalent of a piano sound module, and man... this is it. Find an SF2, load it, and play. That's all there is to ...
Simple and fun
Amazing! Works with my Yamaha reface CP mini-keyboard
The only free app I found that provides android users with Bluetooth midi connectivity, minimal latency, multiple keyboard effects and pitch/modulation control on my Microkey Air
It's the best app out there if you simply want to hook up one midi controller and start playing. Extremely simple, but it just works. I couldn't notice any latency even when using a complex Soundfont.
Frequently asked questions
What is FluidSynth MIDI Synthesizer?
FluidSynth MIDI Synthesizer is a synthesizer that requires a SoundFont (.sf2) file to function.
How can I connect my device to FluidSynth MIDI Synthesizer?
You can connect your device by plugging it into your computer or by using an OTG cable to connect a MIDI USB master keyboard.
What features does FluidSynth MIDI Synthesizer offer?
FluidSynth MIDI Synthesizer allows you to load SoundFont 2 and 3 files, record performances directly in WAVE files, and is based on the FluidSynth 1.1.9 software.
Where can I find the source code for FluidSynth MIDI Synthesizer?
The source code for FluidSynth MIDI Synthesizer can be found at https://github.com/VolcanoMobile/fluidsynth-android.
Alternatives to FluidSynth MIDI Synthesizer
Looking for apps like FluidSynth MIDI Synthesizer? Here are 6 similar Android apps on Google Play. The highest rated is DRC - Polyphonic Synthesizer (4.4/5), and 5 of the 6 are free to download.
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Digitron Synthesizer
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Caustic 3 4.3
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DRC - Polyphonic Synthesizer 4.4
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Cubasis 3 - DAW & Studio App 4.1
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Jamzone 4.1
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Padmaster: Music & Beat Maker 4.3
| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| FluidSynth MIDI Synthesizer | 3.7 / 5 | Free | 100,000+ | Oct 28, 2025 | |
| Digitron Synthesizer | – | Free | 50,000+ | Oct 8, 2026 | Compare |
| Caustic 3 | 4.3 / 5 | Free | 1,000,000+ | Feb 1, 2017 | Compare |
| DRC - Polyphonic Synthesizer | 4.4 / 5 | Free | 500,000+ | Oct 13, 2026 | Compare |
| Cubasis 3 - DAW & Studio App | 4.1 / 5 | 14.99 USD | 50,000+ | Aug 28, 2026 | Compare |
| Jamzone | 4.1 / 5 | Free | 100,000+ | Aug 17, 2026 | Compare |
| Padmaster: Music & Beat Maker | 4.3 / 5 | Free | 100,000+ | Jul 22, 2025 | Compare |