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Dexed

asb2m10.github.io

Free plan Open source WindowsmacOSLinuxiOS
Visit asb2m10.github.io
Spec score 8.9 #1 of 33 in Virtual Instruments

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 plugin formats. Its sound engine follows the original DX7’s 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. A single 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 free software under GPL v3, at free. 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.

Spec sheet

What it does
Dexed is a multi-platform FM synthesizer plugin modeled closely on Yamaha's DX7 and also works as a MIDI cartridge librarian.Read 15 Oct 2026 · asb2m10.github.io
License
Dexed is GPL version 3 software; its msfa component remains under Apache 2.0.Read 15 Oct 2026 · github.com
Additional capabilities
The Surge Synthesizer Team contributed microtuning and MPE support.Read 30 Sep 2026 · asb2m10.github.io
Additional current formats
KVR lists version 1.0.1 as a VST3, CLAP, Audio Units and standalone application for macOS, Windows and Linux.Read 15 Oct 2026 · kvraudio.com
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.Read 15 Oct 2026 · github.com
Automatable controls
Dexed exposes 144 DX7 parameters for DAW automation from one panel.Read 15 Oct 2026 · asb2m10.github.io
Automation
Dexed exposes 144 DAW-automatable DX7 parameters from one panel.Read 30 Sep 2026 · asb2m10.github.io
Build process
Developers clone the repository, initialize recursive submodules, generate CMake files and build with cmake --build.Read 15 Oct 2026 · github.com
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.Read 15 Oct 2026 · asb2m10.github.io
Clone limitation
The wiki says not to expect Dexed to be a perfect clone of a DX7.Read 30 Sep 2026 · github.com
Current release
The official site identifies version 1.0.1, while the repository lists a nightly build updated on October 15, 2026.Read 15 Oct 2026 · github.com
Developer frameworks
The project uses JUCE as its plugin/application wrapper and depends on VST3/CLAP and tuning-related submodules.Read 15 Oct 2026 · github.com
Documentation
The project states that minimal documentation is available on its Dexed Wiki.Read 30 Sep 2026 · asb2m10.github.io
Documentation depth
The official site describes its documentation as minimal and points users to a GitHub wiki.Read 15 Oct 2026 · asb2m10.github.io
DX7 librarian
Dexed is also a MIDI cartridge librarian and manager for the DX7.Read 30 Sep 2026 · asb2m10.github.io
Engine modes
Three engine modes are included: Modern, Mark I and an experimental OPL Series mode.Read 15 Oct 2026 · asb2m10.github.io
Engine types
Dexed includes Modern, Mark I and OPL Series engine types.Read 30 Sep 2026 · asb2m10.github.io
Independent praise: authenticity
A KVR commenter described the emulation as outstanding and close to the real DX7 sound.Read 15 Oct 2026 · kvraudio.com
Independent praise: patch workflow
A Reddit user praised Dexed for importing folders of presets and banks on Mac with Ableton and Logic.Read 15 Oct 2026 · reddit.com
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.Read 15 Oct 2026 · reddit.com
iOS availability
The App Store lists Dexed Synth for iPad and iPhone as version 1.2.5.Read 15 Oct 2026 · apps.apple.com
iOS complaints
App Store reviewers report crashes, orientation and scaling problems, stuck notes, inability to delete presets and missing desktop-style SysEx management.Read 15 Oct 2026 · apps.apple.com
Known DAW issue
An open user issue reports that Ableton Live 12 did not detect the VST3 plugin after installation.Read 15 Oct 2026 · kvraudio.com
Known Linux issue
An open issue reports missing GLIBC dependencies for version 1.0.1 on Ubuntu 22.04.Read 15 Oct 2026 · github.com
Limit: effects
Another review notes that Dexed has no large built-in effects section, so users may need separate reverb, delay or distortion plugins.Read 15 Oct 2026 · vstplugins.co
Limit: interface size
Reddit users have complained that the interface is small, cramped and historically lacked convenient resizing.Read 15 Oct 2026 · reddit.com
Limit: learning curve
An independent review says FM synthesis and Dexed's parameter-heavy interface are intimidating for beginners.Read 15 Oct 2026 · michaelmusco.com
Limit: modern workflow
An independent review says Dexed lacks drag-and-drop modulation routing and visual envelopes found in newer instruments.Read 15 Oct 2026 · michaelmusco.com
Maker identity
The repository maintainer is Pascal Gauthier under the username asb2m10, and KVR identifies the developer brand as Digital Suburban.Read 15 Oct 2026 · github.com
Maker location
Pascal Gauthier's public GitHub profile lists Montréal.Read 15 Oct 2026 · github.com
Open-source evidence
The public repository is marked GPL-3.0 and contains C++ source, CMake files, documentation and submodules.Read 15 Oct 2026 · github.com
Operating systems
The official feature list names OS X, Windows and Linux support.Read 30 Sep 2026 · asb2m10.github.io
Operator meters
Each operator has a real-time VU meter indicating activity.Read 15 Oct 2026 · asb2m10.github.io
Patch files
The plugin loads and saves DX7 and TX7 SysEx programs and can export an individual program to its own SysEx file.Read 15 Oct 2026 · asb2m10.github.io
Plugin formats
The official feature list names VST, Audio Unit and LV2 builds for OS X, Windows and Linux.Read 15 Oct 2026 · asb2m10.github.io
Product type
Dexed is a multi-platform, multi-format plugin synth closely modeled on the Yamaha DX7.Read 30 Sep 2026 · asb2m10.github.io
Program files
It can load and save DX7/TX7 SysEx programs and save a single program to a separate SysEx file.Read 30 Sep 2026 · asb2m10.github.io
Rating on Apple App Store
3.3 out of 5 from 40 ratingsRead 15 Oct 2026 · apps.apple.com
Recent change
The 1.1.0 changelog describes a rewrite of event handling for a modern plugin framework intended to resolve DAW automation issues.Read 15 Oct 2026 · github.com
Release updates
Release 1.0.1 fixes scaling issues and rebuilds the Linux binary for older glibc versions.Read 30 Sep 2026 · github.com
Security-related release practice
The 0.9.7 release notes state that macOS releases became notarized.Read 15 Oct 2026 · github.com
Sound engine
The synthesizer engine is based on the music-synthesizer-for-android project and targets the original DX7 characteristics.Read 15 Oct 2026 · asb2m10.github.io
SysEx support
It sends and receives DX7 SysEx, including controller changes, allowing use as a DX7 or TX7 editor and SysEx manager.Read 15 Oct 2026 · asb2m10.github.io
Wiki limitation
The wiki says Dexed is not expected to be a perfect DX7 clone and points users to the Yamaha DX7 operating manual as reference documentation.Read 15 Oct 2026 · github.com

Plans and prices

Dexed Free free software · Windows, macOS and Linux · VST, AU and LV2 formats Read 15 Oct 2026 · asb2m10.github.io
Free software Free GPL v3 license Read 30 Sep 2026 · asb2m10.github.io

Every Dexed plan and price →

Strong points and limits

Strong points

  • Available as plugin and standalone app.
  • Three engine types are included.
  • Exposes 144 automatable DX7 parameters.
  • Loads and saves DX7/TX7 SysEx programs.
  • Licensed under GPL v3.

Limits

  • Documentation is described as minimal.
  • The project cautions it is not a perfect DX7 clone.
  • Release 1.0.1 is the listed update.

Who it suits

Dexed may suit synth users seeking a DX7-oriented plugin or standalone instrument, as well as DX7 owners managing SysEx programs. Its listed plugin formats and operating systems help establish compatibility, while its documentation is limited.

Dexed in depth

Read the full write-up

Dexed is a DX7-modeled synthesizer and MIDI cartridge librarian for musicians working with classic FM sounds and DX7/TX7 program data. It suits producers who want detailed DAW control or SysEx management without paying for a synth. Its breadth is useful, but the project warns against expecting a perfect DX7 clone, and its documentation is minimal.

Overview

Dexed combines a standalone synth with plugin use and a librarian for DX7 cartridges. That makes it more than a way to make sounds: it can also handle program files and SysEx communication for a DX7-oriented workflow. The sound engine follows the original instrument’s characteristics, but the stated limitation matters to anyone who needs exact hardware reproduction.

Key features

One panel exposes 144 DX7 parameters to DAW automation, giving users extensive control from within a music project. Real-time VU meters for each operator provide feedback while shaping a patch. The three engine types—Modern, Mark I and OPL Series—offer distinct options within Dexed’s DX7-focused approach.

For librarian work, Dexed supports DX7 input and output SysEx messages, including controller change. It can load and save DX7/TX7 SysEx programs and save one program as a separate SysEx file, which is useful for managing or moving sounds individually. Microtuning and MPE support, contributed by the Surge Synthesizer Team, extend its use beyond a narrowly hardware-style setup.

VST, AU and LV2 plugin formats sit alongside a standalone app. That combination gives it several ways to fit into a music setup without changing its central focus on DX7-style synthesis and program data.

Pricing

Dexed is free software under the GPL v3 license: the Free software plan costs nothing. There is no paid tier to unlock a different feature set in the plan structure described here, making it an uncomplicated choice for users who want its synth and librarian capabilities at no cost. The trade-off is not a subscription or quota; it is the project’s modest documentation and its warning that the engine is not a perfect DX7 clone.

Platforms

Dexed supports Linux, macOS and Windows, with VST, AU and LV2 formats and a standalone app. It is a practical fit for musicians on any of those desktop systems, though the stated operating-system support does not extend to mobile platforms.

Who it's for

Choose Dexed if you want a free, DX7-oriented synth with broad DAW automation, or need to manage and exchange DX7/TX7 program data through SysEx. It is less suitable if exact DX7 reproduction or extensive project documentation is essential to your workflow.

Pros and cons

Pro: The 144 automatable parameters make detailed DX7 control available from a single panel.

Pro: SysEx input/output and DX7/TX7 program-file handling make it useful as a librarian as well as a synth.

Pro: Free GPL v3 software with Linux, macOS and Windows support removes both purchase cost and a single-platform constraint.

Con: The project cautions that Dexed is not a perfect DX7 clone, so exact hardware matching is not a sound assumption.

Con: Minimal Wiki documentation may leave users with less guidance when learning its controls and workflow.

Alternatives

Voltage Modular is a free modular-synth option for Windows and macOS, with standalone and plugin versions; choose it if modular synthesis is a better fit than Dexed’s DX7 focus. Vital offers a free Basic plan with 75 presets, 25 wavetables and full synth features across Linux, macOS and Windows, making it a broader free synth alternative for those not specifically seeking DX7/TX7 program handling.

Repro is a paid alternative for readers willing to pay €149, paid once for one product containing two synths; its demo emits crackling sound. Pianoteq is a paid alternative with a free trial and support for iOS as well as desktop platforms; its Stage plan costs $139 as a one-time purchase and includes two instrument packs, up to 48 kHz and limited preset loading. Consider these instead when their stated plan characteristics better suit your platform or instrument needs.

Virtual Drummer is a paid drum-focused option with a free trial and a free Odd Meter MIDI Pack. BBC Symphony Orchestra has a free Discover tier with 34 instruments, 47 techniques, one mix signal and a 240MB size. IK Multimedia ReSing offers a free plan with two voices, two instruments and one RVC import, but no model generation. PREMIER SOUND FACTORY has free instrument offerings, including Hellotron Premier G, which requires full Kontakt 5.7 or higher rather than Kontakt Player. These are alternatives for readers whose needs align with their respective drum, orchestral, voice or Kontakt-instrument focus rather than DX7 synthesis.

Browse Virtual Instruments or Software Synthesizers for more options.

Verdict

Dexed is an easy recommendation for musicians who want a no-cost DX7-style synth and a capable DX7/TX7 SysEx librarian in one package. Its automation, platform coverage and file handling are substantial strengths; look elsewhere if you need a faithful hardware clone or more than minimal documentation.

Verdict

Dexed combines a DX7-modeled synth with parameter automation and SysEx librarian functions. Its platform and format support are specified, though the project sets modest expectations for documentation and exact cloning.

Where Specifiction places it

Alternatives to DexedAll alternatives →