GitPedia

Composer

Visual and code editor for Common Workflow Language

From rabix·Updated May 8, 2026·View on GitHub·

Rabix Composer will remain available as a local sbg:draft2 and CWL 1.0 tool and workflow editor. However, please note that Seven Bridges is not actively maintaining or extending Rabix Composer at the moment (Q2 2021). The repository will remain open for new issues and pull requests, but please have in mind that those may not be processed in a timely manner. The project is written primarily in TypeScript, distributed under the Apache License 2.0 license, first published in 2016. Key topics include: common-workflow-language, cwl, editor, ide.

Latest release: 1.5.0
November 13, 2020View Changelog →

Support notice

Rabix Composer will remain available as a local sbg:draft2 and CWL 1.0 tool and workflow editor. However, please note that Seven Bridges is not actively maintaining or extending Rabix Composer at the moment (Q2 2021). The repository will remain open for new issues and pull requests, but please have in mind that those may not be processed in a timely manner.

New CWL versions and features will still be added to the core open source libraries cwl-ts and cwl-svg.

If you need an up-to-date CWL editor, you can create an account either on the CGC http://cgc.sbgenomics.com/, Biodata Catalyst powered by Seven Bridges https://platform.sb.biodatacatalyst.nhlbi.nih.gov/, or on CAVATICA https://cavatica.sbgenomics.com/ and use the Web Composer available there. The Web Composer is also available on the Seven Bridges Commercial offerings.

Rabix Composer

Build Status

Rabix Composer is an open source editor for Common Workflow Language
documents.

It has a graphical mode allowing drag and drop creation of workflows
and wizard type creation of individual tools.

Workflows!

It also has a text mode for entering CWL code directly. The graphical and text
modes work seamlessly together.

Graphical to Text and back again!

Dependencies

Installation

bash
git clone https://github.com/rabix/composer cd composer npm ci

If you are using Linux:

Install node.js from https://nodejs.org/en/download/package-manager/#debian-and-ubuntu-based-linux-distributions

Starting the dev environment

bash
npm run serve // starts the dev server npm run compile:electron // compiles electron backend npm run start:electron // opens the app shell

Packaging the build as a desktop app for the host system and architecture

bash
npm run build

Running the tests

bash
npm test

Documentation

Now you can read the Rabix Composer documentation to learn more about Rabix Composer.

Contributors

Showing top 11 contributors by commit count.

View all contributors on GitHub →

This article is auto-generated from rabix/composer via the GitHub API.Last fetched: 6/21/2026