Ableton Extensions Learning

A learning repository for the Ableton Extensions SDK — built with TypeScript and JavaScript.

The goal of this repo is to explore, experiment, and document the Extensions SDK step by step. It is intended both as a personal learning space and as a reference for other developers getting started with Ableton Live extensions.

About the Extensions SDK

The Ableton Extensions SDK is an open JavaScript/TypeScript toolkit that lets you build custom tools running directly inside Ableton Live 12 Suite. Extensions can read and modify tracks, clips, MIDI, tempo, devices, and more.

Currently available as a public beta alongside Live 12.4.5.
Learn more: https://ableton.github.io/extensions-sdk/

Repository Structure

examples/
└── 1.0.0-beta.0/
    └── show-tempo/       # Read and display the current tempo of the Live Set
        ├── src/
        │   └── extension.ts
        ├── manifest.json
        ├── package.json
        └── README.md

Each example is organized by SDK version so that changes between beta releases are easy to track and compare.

SDK & Compatibility

Component	Version
Extensions SDK	1.0.0-beta.0
Ableton Live	12.4.5 (public beta)
Node.js	>= 24.14.1
TypeScript	^5.9.3

Getting Started

Prerequisites

• Ableton Live 12.4.5 Suite (public beta)
• Node.js >= 24.14.1
• The Extensions SDK and CLI .tgz files (provided in vendor/)

Running an example

cd examples/1.0.0-beta.0/show-tempo
npm install
npm start

This builds the extension in dev mode and runs it via extensions-cli.

Building for production

npm run build
npm run package

Branch Convention

Branch	Purpose
main	Stable, documented reference
sdk/x.x.x-betaX	Examples pinned to a specific SDK version
feature/x.x.x-betaX/name	Work in progress on a specific example

Author

Christophe MAIGNAN — @cmaignan-source

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Built with @ableton-extensions/sdk