PLUGINFREEK

Best Free FM Synth Plugins 2025

The best free FM synthesis VST plugins. From classic DX7 sounds to modern FM sound design.

Updated Apr 3, 2026

  1. 1

    Odin 2 The Wave Warden

    Semi-modular 24-voice synthesizer with analog, wavetable, FM, and noise oscillators. Deep modulation system.

    synthwavetablefmopen-source
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  2. 2

    Dexed Digital Suburban

    Accurate emulation of the Yamaha DX7 FM synthesizer. Loads original DX7 SysEx patches and provides a modern editing interface.

    synthfmvintageopen-source
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Why Use Free fm Plugins?

Free fm plugins have come a long way. Many rival their paid counterparts in sound quality and features. Rankings are based on community votes - score equals upvotes minus downvotes.

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