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ChucK

Open-source music programming language for real-time synthesis and live coding.

Open sourceLive coding music tools

Updated · AppBreakup editorial · macOS, Windows, Linux, Web

Visit ChucKSee 4 alternatives

Is ChucK free?

Yes, free and open source

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About ChucK

ChucK is a programming language for making sound and music in real time, developed at Stanford's CCRMA since 2003. Its central idea is that time is part of the language: you advance time explicitly in code, which gives precise, sample-accurate control over when things happen, and you can run many concurrent sound processes and add or replace them while the program plays. That makes it suited to live coding performances, laptop orchestras, teaching and sound research. It supports MIDI, OpenSoundControl, game controllers and multi-channel audio, and has add-ons for graphics (ChuGL), running in the browser (WebChucK), and embedding in Unity or TouchDesigner. Compared with pattern-based tools like TidalCycles or Strudel, it is lower level: you build synthesis and timing yourself rather than describing patterns. It is free and open source and runs on macOS, Windows and Linux, plus in a web IDE.

Best for: Musicians, students and researchers who want precise, code-level control over synthesis and timing.

Pros and cons

What works

  • Free and open source, with a long academic history and teaching material
  • Sample-accurate timing built into the language
  • Code can be added or swapped while the music keeps playing
  • Runs in the browser through WebChucK as well as on desktop

Why people leave

  • Lower level than pattern languages, so simple beats take more code
  • Smaller community than Sonic Pi or SuperCollider
  • Its own syntax to learn, not a general-purpose language

ChucK vs SuperCollider, Sonic Pi and TidalCycles

From each app's listing and the prices verified on its own site. A dash means we haven't verified it yet.

AttributeChucKSuperColliderSonic PiTidalCycles
PricingOpen sourceOpen sourceOpen sourceOpen source
Verified price————
Free planFree appFree appFree appFree app
Open sourceNoYesYesYes
Self-hostableNoNoNoNo
PlatformsmacOS, Windows, Linux, WebWindows, macOS, LinuxWindows, macOS, Linux, WebWindows, macOS, Linux

Top ChucK alternatives

See all 4
  1. 1SuperCollider logo
    SuperCollider

    The other classic audio programming language, with a bigger synthesis library and community.

    68.8
  2. 2Sonic Pi logo
    Sonic Pi

    Friendlier Ruby-like syntax with built-in samples and synths, made for classrooms and beginners.

    64.8
  3. 3TidalCycles logo
    TidalCycles

    Describe rhythms as compact patterns instead of scheduling every event yourself.

    61.8
  4. 4Strudel logo
    Strudel

    Pattern-based live coding that runs entirely in the browser with nothing to install.

    59.4

Why people left ChucK

In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.

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ChucK: common questions

What is ChucK?

ChucK: Open-source music programming language for real-time synthesis and live coding. Best for musicians, students and researchers who want precise, code-level control over synthesis and timing. Available for macOS, Windows, Linux and Web.

Is ChucK free?

Yes. ChucK is free, open-source software.

Is ChucK open source?

No, ChucK is not open source. Open-source alternatives include SuperCollider, Sonic Pi and TidalCycles.

What platforms does ChucK run on?

ChucK is available for macOS, Windows, Linux and Web.

What are the best alternatives to ChucK?

The highest-ranked ChucK alternatives right now are SuperCollider, Sonic Pi and TidalCycles. See the full ranked list for pricing, platforms and verified facts.

ChucK vs SuperCollider: what's the difference?

Both ChucK and SuperCollider are free and open source. SuperCollider is open source and ChucK is not. Only ChucK runs on Web.

See all 4 ChucK alternatives