Repositories list

• common-workflow-language.github.io

  Public
  GitHub pages source for the main CWL website, please send PRs to https://github.com/common-workflow-language/cwl-website

  HTML

  •6•4•0•0•Updated Mar 2, 2026Mar 2, 2026

• cwl-website

  Public
  www.commonwl.org

  common-workflow-languagecwl

  JavaScript

  •

  Apache License 2.0

  •22•10•19•3•Updated Mar 2, 2026Mar 2, 2026

• cwltool

  Public
  Common Workflow Language reference implementation

  sciencecontainerscommon-workflow-language+ 4cwlworkflowscommonwlsciworkflows

  Python

  •

  Apache License 2.0

  •240•362•447•43•Updated Feb 28, 2026Feb 28, 2026

• schema_salad

  Public
  Semantic Annotations for Linked Avro Data

  Python

  •

  Apache License 2.0

  •63•85•79•13•Updated Feb 27, 2026Feb 27, 2026

• cwl-v1.2

  Public
  Released CWL v1.2.1 specification

  workflow

  Common Workflow Language

  •

  Apache License 2.0

  •27•40•46•3•Updated Feb 25, 2026Feb 25, 2026

• cwlviewer

  Public
  A web application to view and share Common Workflow Language workflows

  javaworkflowcommon-workflow-language+ 2cwlworkflows

  Java

  •

  Apache License 2.0

  •29•48•56•6•Updated Feb 23, 2026Feb 23, 2026

• cwljava

  Public
  Java SDK for the Common Workflow Language standards

  javacwlcommonwl

  Java

  •8•15•7•0•Updated Feb 23, 2026Feb 23, 2026

• cwl-v1.3

  Public
  workflow

  Common Workflow Language

  •

  Apache License 2.0

  •4•5•34•5•Updated Feb 19, 2026Feb 19, 2026

• workflow-service

  Public
  Implementation of the GA4GH Workflow Execution Service, a REST service for running workflows

  python

  Python

  •

  Apache License 2.0

  •21•38•27•3•Updated Feb 5, 2026Feb 5, 2026

• cwltest

  Public
  Framework for testing CWL tools and workflows

  common-workflow-languagecwl

  Python

  •

  Apache License 2.0

  •18•20•11•1•Updated Feb 4, 2026Feb 4, 2026

• cwlprov-py

  Public
  cwlprov: Command line tool and Python API to explore Research Objects containing provenance of Common Workflow Language executions

  pythonprovenancecwl+ 3bagitresearch-objectprov

  Python

  •

  Apache License 2.0

  •3•4•1•1•Updated Jan 30, 2026Jan 30, 2026

• cwl-utils

  Public
  Python utilities for CWL

  common-workflow-languagecwlcommonwl

  Python

  •

  Apache License 2.0

  •24•42•26•10•Updated Jan 19, 2026Jan 19, 2026

• user_guide

  Public
  The CWL v1.0 - v1.2 user guide

  workflowcommon-workflow-languagecwl+ 1workflows

  Common Workflow Language

  •

  Other

  •65•43•73•19•Updated Jan 14, 2026Jan 14, 2026

• cwl-v1.1

  Public
  Current stable CWL v1.1 specification

  workflowcwl

  Common Workflow Language

  •

  Apache License 2.0

  •12•7•0•6•Updated Jan 8, 2026Jan 8, 2026

• common-workflow-language

  Public
  Repository for the CWL standards. Use https://cwl.discourse.group/ for support 😊

  scienceworkflowcontainers+ 5common-workflow-languagecwlworkflowscommonwlsciworkflows

  Common Workflow Language

  •

  Apache License 2.0

  •195•1.5k•220•21•Updated Jan 8, 2026Jan 8, 2026

• cwl-upgrader

  Public
  Upgrade CWL syntax to a newer version

  cwlcommonwl

  Python

  •

  Apache License 2.0

  •4•7•9•2•Updated Jan 5, 2026Jan 5, 2026

• cwldep

  Public
  Common Workflow Language dependency manager

  Python

  •

  Apache License 2.0

  •3•11•0•0•Updated Sep 17, 2025Sep 17, 2025

• governance

  Public
  Holds public material generated by and for the CWL board.

  cwl

  HTML

  •3•4•6•1•Updated May 22, 2024May 22, 2024

• cwlcon2024

  Public
  Website for the 2024 CWL Conference

  HTML

  •

  GNU General Public License v3.0

  •0•1•11•0•Updated May 15, 2024May 15, 2024

• w3id.org

  Public
  Website source code for w3id.org

  HTML

  •1.6k•0•0•0•Updated Apr 5, 2024Apr 5, 2024

• cwlprov

  Public
  Profile for provenance research object of a CWL workflow run

  workflowlinked-datardf+ 6provenancecwlbagitresearch-objectprovcwlprov

  Apache License 2.0

  •3•19•3•0•Updated Dec 20, 2022Dec 20, 2022

• .github

  Public
  Default community health files for the CWL project

  Apache License 2.0

  •1•3•0•0•Updated Oct 17, 2022Oct 17, 2022

• media

  Public
  CWL logo source

  cwl

  Other

  •2•5•2•0•Updated Dec 10, 2021Dec 10, 2021

• acd2cwl

  Public archive
  CWL generator for ACD (EMBOSS) files

  commonwl

  Python

  •

  MIT License

  •1•3•0•1•Updated Apr 29, 2021Apr 29, 2021

• pypi2cwl

  Public
  python

  Python

  •

  Other

  •1•1•0•0•Updated Apr 29, 2021Apr 29, 2021

• cwl2argparse

  Public
  cwl2argparse generates an argparse definition from CWL tool arguments that can be pasted in a Python program and used

  Common Workflow Language

  •

  Apache License 2.0

  •4•10•0•0•Updated Apr 29, 2021Apr 29, 2021

• for_decision_makers

  Public
  One page CWL explainer for Business/policy decision makers

  Apache License 2.0

  •1•1•1•0•Updated Jul 2, 2020Jul 2, 2020

• for_novices

  Public
  One page CWL explainer for workflow novices

  2•1•2•0•Updated Jul 2, 2020Jul 2, 2020

• GSoD-proposals-2019

  Public
  Apache License 2.0

  •1•1•0•0•Updated Jul 2, 2020Jul 2, 2020

• conformance

  Public
  Location to store the results of CWL conformance testing

  Apache License 2.0

  •1•1•0•0•Updated Jul 2, 2020Jul 2, 2020