Reverb+ Reverb effect, plus pulse/CV generators and MIDI-to-CV, configurable using web interface. Included
Simple MIDI Takes USB midi, sends it to pulse and CV outputs, also sends knob positions and CV inputs back to the computer as CC values. Included
Blank A blank card is a blank canvas. Install any card firmware you want from this site.Learn how ↗ (opens in a new tab) Included
15MLRws A remix of monome's classic MLR sample cutting platform (grid controller encouraged but optional). Diagrams here are for Gridless mode.
71Degenerator Degenerator — Disintegrating Looper. Capture audio loops and apply irreversible degradation with 6 algorithms (Saturation, Filter Drift, Tape Hiss, Oxide Shedding, Bit Crush, Bit Rot) via p… NewRecommended
32Vink Dual delay loops with sigmoid saturation for Jaap Vink / Roland Kayn style feedback patching Wild
42Backyard Rain Nature soundscape audio. A cozy rain ambience mix for background listening. You control the intensity. This card plays rain ambience which was recorded in my backyard. Classic
71Degenerator Degenerator — Disintegrating Looper. Capture audio loops and apply irreversible degradation with 6 algorithms (Saturation, Filter Drift, Tape Hiss, Oxide Shedding, Bit Crush, Bit Rot) via p… New
78Talker Proof of concept speech synthesizer, based on TalkiePCM, inspired by 1970s LPC speech synths.
26Clockwork 6-channel polyrhythmic clock, gate, and LFO/envelope generator inspired by Pamela's Workout.
28Eighties Bass Bass-oriented complete monosynth voice consisting of five detuned saw wave oscillators with mixable white noise and adjustable resonant filter.
71Degenerator Degenerator — Disintegrating Looper. Capture audio loops and apply irreversible degradation with 6 algorithms (Saturation, Filter Drift, Tape Hiss, Oxide Shedding, Bit Crush, Bit Rot) via p… Recommended
28Eighties Bass Bass-oriented complete monosynth voice consisting of five detuned saw wave oscillators with mixable white noise and adjustable resonant filter.
78Talker Proof of concept speech synthesizer, based on TalkiePCM, inspired by 1970s LPC speech synths. Recommended
20Reverb+ Reverb effect, plus pulse/CV generators and MIDI-to-CV, configurable using web interface. Included
71Degenerator Degenerator — Disintegrating Looper. Capture audio loops and apply irreversible degradation with 6 algorithms (Saturation, Filter Drift, Tape Hiss, Oxide Shedding, Bit Crush, Bit Rot) via p… NewRecommended
42Backyard Rain Nature soundscape audio. A cozy rain ambience mix for background listening. You control the intensity. This card plays rain ambience which was recorded in my backyard. RecommendedClassic
38Od Loopable chaotic Lorenz attractor trajectories and zero-crossings as CV and pulses, with sensitivity to initial conditions. Classic
24Crafted Volts Manually set control voltages (CV) with the input knobs and switch. It also attenuverts (attenuates and inverts) incoming voltages.
0Simple MIDIby Tom Whitwell Takes USB midi, sends it to pulse and CV outputs, also sends knob positions and CV inputs back to the computer as CC values. Includedmidiutilitycvgate
3Turing Machineby Tom Whitwell Turing Machine with tap tempo clock, 2 x pulse outputs, 4 x CV outputs Includedsequencerturing-machinerandomclockcv
4BYO Benjolinby Dune Desormeaux Rungler, Chaotic VCO, Noise Source, Turing Machine, Quantizer ClassicWildchaosrungleroscillatorturing-machinequantizer
6USB Audio & MIDIby Vincent Maurer (vincentmaurer.de) 6-Channel USB Audio & MIDI firmware with CV/Gate support usb-audiomidiutilitycvgate
7Bumpersby Chris Johnson 'Bouncing ball' style delay and trigger generators triggerdelaygenerativeutility
8Bytebeatby Matt Kuebrich Generates and mangles bytebeats bytebeatoscillatorgenerativenoiseexperimental
9DivComby divmod Comparator and VC clock divider, inspired by Serge NCOM Wildcomparatorclock-dividerlogicutility
10Twistsby Random Works A port of Mutable Instruments Braids with a web editor synthesizeroscillatorwavetablemidi-host
11Goldfishby Dune Desormeaux Weird delay/looper for audio and CV ClassicRecommendeddelayloopercvglitch
12AM Couplerby Chris Johnson AM radio transmitter / coupler Wildradiotransmitterutilitysample-playback
13Noiseboxby Eric Gao 13-algorithm noise synth with CV modulation, sample-and-hold, and crusher mode Wildnoisesynthesizersample-and-holdbitcrusher
15MLRwsby Dune Desormeaux A remix of monome's classic MLR sample cutting platform (grid controller encouraged but optional). Diagrams here are for Gridless mode. samplerlooperperformanceusb-hostgrid-controller
16The Bellsby James Saunders Bellringing methods sequencer — 12 change-ringing methods with tempo and jitter, quantised to six scales sequencercampanologypermutationcvscalegenerative
18Chord Organ-ishby jkeyworth Chord Organ-ish - 16 chords, 8 voices, 1V/oct root. Inspired by Music Thing Chord Organ. synthesizerchordsprogressioncv
19Cellular Automata Sequencerby Ainews 16-cell gate and quantized CV melody generator inspired by NLC Cellular Automata, using CA rules 90 & 150 on a 4x4 grid
20Reverb+by Chris Johnson Reverb effect, plus pulse/CV generators and MIDI-to-CV, configurable using web interface. Includedeffectreverbmidi-hostutilityclock
21Resonatorby Johan Eklund Karplus-Strong sympathetic resonator for droning and plucked textures, with chord & tanpura tunings, arpeggiator, pitch tracking and web-configurable CV/pulse outputs. Classiceffectresonatorkarplus-strongdroneplucked
22Sheepby Dune Desormeaux A time-stretching and pitch-shifting granular processor and digital degradation playground with 2 fidelity options. Classiceffectgranulartime-stretchpitch-shiftglitch
24Crafted Voltsby Brian Dorsey Manually set control voltages (CV) with the input knobs and switch. It also attenuverts (attenuates and inverts) incoming voltages. utilitycvattenuvertervoltage-source
25Utility Pairby Chris Johnson 25 small utilities, which can be combined in pairs Classicutilitymulti-toolmodulationeffects
26Clockworkby Vincent Maurer 6-channel polyrhythmic clock, gate, and LFO/envelope generator inspired by Pamela's Workout. clocktriggerlfoenvelopesequencerpolyrhythmquantizer
27Sirenby Moses Hoyt Multi-algorithm drone oscillator. Inspired by the Forge TME Vhikk X. droneoscillatorstereofixed-pointprocessor
28Eighties Bassby Tod Kurt (@todbot) Bass-oriented complete monosynth voice consisting of five detuned saw wave oscillators with mixable white noise and adjustable resonant filter. bassmonosynthfilterdetunemozzi
29XHT Cardby Adrian Vos A playable deep-note-inspired stereo chord swarm with manual scrubbing, one-shot movement, delay, reverb, CV, pulse, and optional MIDI control. synthesizerstereoeffectmidimidi-hostcvclockedworkshop-computer
30Cirpy Wavetableby Tod Kurt (@todbot) Wavetable oscillator that using wavetables from Plaits, Braids, and Microwave, wavetableoscillatorcircuitpythonlfopwm-audio
31ESPby Ben Regnier A MS-20-style External Signal Processor that includes a preamp, bandpass filter, envelope follower, gate, and 1v/oct pitch outs. external-signal-processorenvelope-followerpitch-trackergate-extractorfilter
32Vinkby Ben Regnier Dual delay loops with sigmoid saturation for Jaap Vink / Roland Kayn style feedback patching WildRecommendeddelayfeedbacksaturationdual-tapexperimental
34DualQuant Dual quantised granular pitch shifter with calibrated 1V/oct CV outputs granularpitch-shifterdual-outputquantizerfixed-point
35FreqShiftby Ben Regnier Dual Input Frequency Shifter for Feedback Experimentation frequency-shifterfeedbackexperimentaldual-sideband
36GradualProcessby James Saunders Three generative composition processes (Glass, Reich, Tintinnabuli) in one card, chosen by Main's position at power-on generativesequencerminimalismphaseharmonymulti-mode
38Odby M. John Mills Loopable chaotic Lorenz attractor trajectories and zero-crossings as CV and pulses, with sensitivity to initial conditions. Classic
41Blackbirdby Dune Desormeaux A scriptable, live-codable, USB-serial-to-CV device implementing monome crow's protocol
42Backyard Rainby Brian Dorsey Nature soundscape audio. A cozy rain ambience mix for background listening. You control the intensity. This card plays rain ambience which was recorded in my backyard. RecommendedClassic
43Castle Processby Adrian Vos Fort Processor-inspired harsh noise processor with chopped external audio and a bass pulse voice harsh-noiseperformancechopped-audiobasslo-fi
44Birdsby Tom Whitwell Two birds sing to each other controlled by a Turing-style shift register sequencer with clock in and CV/pulse out.
48Two Tracksby Joep Vermaat Two Tracks — Dual-read-head phase looper. Record a mono loop to flash (IMA-ADPCM) and play it through two independent heads with separately controllable positions and loop lengths for evolv… looperphasedelaydual-head
54Tapegrade Mono-input stereo cassette warble processor with wow, flutter, hiss, crackle, and tape wear morphing. tapedegradationstereomodulationlo-fi
55Fifthsby Dune Desormeaux A quantizer/sequencer that can create harmony and nimbly traverse the circle of fifths in attempts to make jazz quantizersequencerharmonycvgenerative
57Glitchby Andy Jenkinson (uglifruit) Clock-synced beat-repeater with ratcheting, reversal and audio degradation Recommendedbeat-repeatstutterglitchclockedlo-fi
58LoCho Vibes Stereo chorus and vibrato effect featuring triangle, sine, and slow drift LFO modes, modulation-based delay movement, and tape-style saturation.
59BitPhase Resonant 4-stage phaser for the Workshop Computer with deep notch filtering, wide modulation sweeps, controllable resonance, tremolo blending, and digital Burst-mode degradation. effectphasertremololo-fi
60Markovby Andy Jenkinson (uglifruit) Dual generative Markov chain module — evolving melody (MarkoV) left side, rhythmic percussion patterns (MarkovPerc) right side, with internal synth voice
64Voices of SIDby Joep Vermaat Dual MOS 6581 SID emulation (reSID engine) with CV/gate control, stereo output, waveform selection, and randomize synthesizersidchiptunedual-voicecv-gate
66Stretchcoreby Infinite Digits A card for playing and manipulating samples with tempo control, timestretch with browser-based audio loading (infinitedigits.com/stretchcore/)
67Fragmentsby Max Harnishfeger Six-slot audio recorder and clocked fragment sequencer with browser librarian, MIDI pitch control, random CV outputs, and an alternate long-sample variation mode.
71Degeneratorby Joep Vermaat Degenerator — Disintegrating Looper. Capture audio loops and apply irreversible degradation with 6 algorithms (Saturation, Filter Drift, Tape Hiss, Oxide Shedding, Bit Crush, Bit Rot) via p… NewRecommended
72Motorikby Joep Vermaat Motorik drum machine — kick/snare/hihat with bass and melody CV, classic Krautrock grooves
73VSSby @kjnilsson 6-voice polyphonic µ-law sampler inspired by the Yamaha VSS-30 samplerpolyphonicmidi-hosteffect
75Turing Cloudsby Ainews Turing Machine-driven granular texture generator and rhythmic delay for the Workshop Computer
76Hot Fuzzby Joep Vermaat A stereo fuzz/distortion + resonant wah effects processor with manual and auto-wah modes, built on fixed-point DSP. fuzzdistortionwahfiltereffects-processorenvelope-follower
78Talkerby Chris Johnson Proof of concept speech synthesizer, based on TalkiePCM, inspired by 1970s LPC speech synths. Recommendedspeechsynthlpcaudio-processing
81West Coast LPGby Jason Moore Dual vactrol-emulating low-pass gate (combined VCA + low-pass filter) with fast-attack/slow-decay 'plong', self-pinging percussion, and per-channel VCA/VCF/LPG modes.
82Computer Gridsby Phil Miller Grids-inspired trigger sequencer with Web MIDI SysEx configuration. Newsequencertriggermidi-host
83Origamiby Jason Moore Dual oversampled wavefolder — triangle / sine / hard-clip folding with bias (even-harmonic) control and CV over fold depth, band-limited via 4x oversampling.
84Cosmik C1ZZL3 Stable phase-distortion synthesiser and Turing machine firmware with Web MIDI envelope readback, PD, detune, eight waveform families, hosted CZ patch import, USB MIDI device/host operation,… synthmidiweb-midituring-machinephase-distortion
86Tesseraeby Joep Vermaat Tesserae — Variable-voice (2-8) arpeggiated chord generator with 5 patterns, 10 scales, tap tempo, CV/audio transpose inputs, and dual CV + audio pitch outputs. Inspired by Laurie Spiegel's… arpeggiatorharmoniccvutility
87Fr330hfr33 Hardware-tested acid bass synthesiser with selectable saw or square oscillator, switchable 18 or 24 dB diode-style filtering, accent and glide, distortion, USB MIDI device/host operation, a…
90Pantographby Kenny Shen Trace and record CV — record knob movements, loop them at bipolar speed cvrecorderlooperlfoenvelopemodulation
91Chorganby Andy Jenkinson (uglifruit) Chorgan — 6-voice chord synthesizer with morphing timbre, chord extension presets, and built-in chord sequencer. Two modes: normal (detune/chorus) and slew (portamento chord changes). Inspi… synthesizerchordsequencerpolyphonicportamento
93Turing Matrix Turing Machine sequencer with a switchable mixer layer inspired by the Music Thing Modular Turing Machine and Vactrol Mix combination sequencerturing-machinerandomclockcvmixer
95OffAirby Andy Jenkinson (uglifruit) OffAir — AM/Shortwave/Longwave radio simulator. Tune between two Stations and interference with authentic heterodyne whistles, SSB pitch-shift detuning, AM envelope detection, swelling per-… radiosamplernoiseeffectgenerative
96Cathode Rayby Andy Jenkinson (uglifruit) Composite video synthesiser (PAL + NTSC builds) — oscilloscope, etch-a-sketch & spectrum analyser, greyscale via dithering, performance effects, 8 alt-boot screensaver/game modes videocompositeoscilloscopevisualiserperformance
97Alloyby Eric Gao Fixed-point 15-zone cross-modulator with a clocked Turing CV and gate companion. dspmodulationring-modulationwavefoldervocoderturing-machine
433433 Sense of Spaceby Music Thing Modular / AI-assisted Whimsical 4'33"-inspired ambience looper with a three-loop transport, LED countdown, restlessness fidgets, Pulse In restart, and chair creak one-shot. ambiencereverbsamplerexperimentalfoley