https://audio.dev/ -- @audiodevcon​
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Modular Synth in the Browser - Kilian Hertel - ADCx Copenhagen 2026
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Synflow is a browser-native, visual node-graph workstation designed for the rapid prototyping and implementation of audio, MIDI, and control flows. Developed to fill the ""middle ground"" gap between low-level coding environments like the raw Web Audio API and complex, desktop-only legacy software, Synflow provides a high-speed playground for programming and DSP ideas. The platform prioritizes a zero-barrier entry, requiring no installation or account creation, and runs directly in any modern browser. Users can iterate quickly by adding and wiring independent nodes to hear results instantly, mimicking the tactile experience of a Eurorack modular system without the overhead of a traditional build setup. The technical architecture of Synflow consists of four distinct layers: the Web Audio API for the C++ render thread, XYFlow (React Flow) for the visual UI, a custom EventBus for cross-node messaging, and an Audio Graph Manager to keep the visual and audio planes in sync. With a library of 46 nodes, the system supports a wide range of functions including audio sources (oscillators, samples, noise), MIDI sequencing, logic operations, and audio transformations like filters and reverbs. Advanced users can even implement custom DSP via AudioWorklets or JS transforms $N rightarrow M$. Whether building generative music, live effect banks for instruments, or complex synthesizers like organs and bagpipes, Synflow offers a robust, open-source environment for both educational experimentation and professional-grade audio development.
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Kilian Hertel

Kilian is a Product Manager for Software Development Services at Qvest Digital AG, where he currently focuses on leveraging AI to optimize development workflows. His career is a masterclass in bridging the gap between high-level strategy and deep technical execution, having spent nearly six years as the CEO of Tobax and serving as a Senior Developer at Tessitura GmbH.

Kilian’s philosophy centers on creating ""middle-ground"" tools that eliminate barriers to entry—a mission most visible in his project Synflow, a browser-native modular synthesizer that enables rapid audio prototyping without the need for installation or complex compile steps. With a background rooted in data modeling, project management at Deutsche Post AG, and full-stack development, he combines the reliability of industrial-scale IT with the creative agility of a builder who isn't afraid to ""wire it and hear it"" instantly.
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ADC is an annual event celebrating all audio development technologies, from music applications and game audio to audio processing and embedded systems. ADC’s mission is to help attendees acquire and develop new audio development skills, and build a network that will support their audio developer career.
Annual ADC Conference - https://audio.dev/
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Streamed & Edited by Digital Medium Ltd: https://online.digital-medium.co.uk
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Organized and produced by JUCE: https://juce.com/
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Special thanks to the ADC Team:

Bence Kovacs
Martin Swanholm
Sophie Carus
Derek Heimlich
Andrew Kirk
Bobby Lombardi
Tom Poole
Ralph Richbourg
Jim Roper
Jonathan Roper
Prashant Mishra

#adc #audiodev #dsp #audio #conferenceaudio #audioprocessing #audioproduction #audioprogramming #sound #music #musictech #soundtech #audiotech #audiotechnology