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Dexed
What it is
Dexed is a free synth plugin and standalone app modeled on the Yamaha DX7. It runs on Linux, macOS, and Windows, with VST, AU, and LV2 formats. The sound engine follows original DX7 characteristics and includes Modern, Mark I, and OPL Series engine types. Dexed also serves as a MIDI cartridge librarian for the DX7: it can load and save DX7/TX7 SysEx programs, save an individual program to a separate SysEx file, and exchange DX7 SysEx messages, including controller change. One panel exposes 144 DAW-automatable DX7 parameters, and each operator has a real-time VU meter. Microtuning and MPE support were contributed by the Surge Synthesizer Team. Dexed is GPL v3 free software. The project says documentation is minimal and cautions against expecting a perfect DX7 clone. Release 1.0.1 fixes scaling issues and rebuilds the Linux binary for older glibc versions.
For and against
For
- Free software under GPL v3
- Available as plugin and standalone app
- Supports DX7/TX7 SysEx programs
- Includes 144 automatable parameters
Against
- Project documentation is minimal
- Not intended as a perfect DX7 clone
The verdict
Dexed combines a DX7-modeled synth with librarian functions and support for several plugin formats. Readers should factor in the project’s limited documentation and its stated clone limitation.
Who it suits
Dexed suits synth users who want a DX7-modeled instrument and DX7 program librarian across Linux, macOS, or Windows. It may also fit users seeking MPE support or DAW-automatable parameters.
Plans and prices
Dexed
free software · Windows, macOS and Linux · VST, AU and LV2 formats
Read 15 Oct 2026 · asb2m10.github.io
Free software
GPL v3 license
Read 30 Sep 2026 · asb2m10.github.io
On the record
- Additional capabilities
- The Surge Synthesizer Team contributed microtuning and MPE support.asb2m10.github.io · read 30 Sep 2026
- Additional current formats
- KVR lists version 1.0.1 as a VST3, CLAP, Audio Units and standalone application for macOS, Windows and Linux.kvraudio.com · read 15 Oct 2026
- API or SDK
- The project documents no public web API or commercial SDK; extensibility is through its source code, plugin formats and MIDI/SysEx interfaces.github.com · read 15 Oct 2026
- Automatable controls
- Dexed exposes 144 DX7 parameters for DAW automation from one panel.asb2m10.github.io · read 15 Oct 2026
- Automation
- Dexed exposes 144 DAW-automatable DX7 parameters from one panel.asb2m10.github.io · read 30 Sep 2026
- Build process
- Developers clone the repository, initialize recursive submodules, generate CMake files and build with cmake --build.github.com · read 15 Oct 2026
- Cartridge manager
- Any .syx file placed in the Cartridges directory appears in the cartridge browser, where patches can be dragged, dropped and sent to hardware.asb2m10.github.io · read 15 Oct 2026
- Clone limitation
- The wiki says not to expect Dexed to be a perfect clone of a DX7.github.com · read 30 Sep 2026
- Current release
- The official site identifies version 1.0.1, while the repository lists a nightly build updated on October 15, 2026.github.com · read 15 Oct 2026
- Developer frameworks
- The project uses JUCE as its plugin/application wrapper and depends on VST3/CLAP and tuning-related submodules.github.com · read 15 Oct 2026
- Documentation
- The project states that minimal documentation is available on its Dexed Wiki.asb2m10.github.io · read 30 Sep 2026
- Documentation depth
- The official site describes its documentation as minimal and points users to a GitHub wiki.asb2m10.github.io · read 15 Oct 2026
- DX7 librarian
- Dexed is also a MIDI cartridge librarian and manager for the DX7.asb2m10.github.io · read 30 Sep 2026
- Engine modes
- Three engine modes are included: Modern, Mark I and an experimental OPL Series mode.asb2m10.github.io · read 15 Oct 2026
- Engine types
- Dexed includes Modern, Mark I and OPL Series engine types.asb2m10.github.io · read 30 Sep 2026
- Independent praise: authenticity
- A KVR commenter described the emulation as outstanding and close to the real DX7 sound.kvraudio.com · read 15 Oct 2026
- Independent praise: patch workflow
- A Reddit user praised Dexed for importing folders of presets and banks on Mac with Ableton and Logic.reddit.com · read 15 Oct 2026
- Independent praise: value
- A Reddit user called Dexed amazing for its free price and said it sounded indistinguishable from a DX7 emulator when velocity was set correctly.reddit.com · read 15 Oct 2026
