Dexed is a multi-platform, multi-format plugin synthesizer that emulates the Yamaha DX7.
The tool addresses the need for a software recreation of the classic DX7 FM synthesizer that works as a plugin across different digital audio workstations and operating systems. It uses the music-synthesizer-for-android engine for the core synthesis and JUCE as the plugin wrapper, allowing it to function as a VST, VST3, CLAP, or AU plugin.
Dexed suits musicians and producers who want authentic DX7 sounds in their DAW without hardware limitations. It works across Windows, macOS, and Linux, with native builds for Apple Silicon. The project explicitly positions itself as a companion tool for the original DX7 rather than a replacement or enhancement, making it ideal for those seeking period-accurate FM synthesis. The README mentions forks that extend the concept—one for bare-metal Raspberry Pi deployment and another with SIMD optimization—but does not compare the base project to other FM synthesizer plugins.
Development shows sustained activity with regular refinements to core functionality and plugin compatibility. Recent work has addressed UI scaling across different plugin formats, improved MIDI handling including sysex patch requests and per-channel control change mapping, and expanded microtuning support through MTS-ESP integration. The project has added accessibility features including keyboard shortcuts and has modernized its build system to CMake. The maintainer actively solicits donations to support ongoing maintenance and platform-specific requirements like macOS notarization.
