toil

Workflow Systems / toil

toil

A WDL, CWL and Python API supporting easy-to-use workflow engine. It is scalable, efficient and cross-platform (Linux/macOS).

Last updated 09 Jan 2026
Release 9.1.2
Language Python
License Apache-2.0

Overview

A WDL, CWL and Python API supporting easy-to-use workflow engine. It is scalable, efficient and cross-platform (Linux/macOS).

Repository activity

Terminology Terminology below follows the definitions established by the Workflows Community Terminology.

Characteristics
Flow
Data
Granularity
Sub-workflows
Coupling
Loose
Dynamicity
Branches
Domain
Agnostic
Composition
Description
Standard (CWL/WDL)
Abstraction
Abstract
Modularity
Hierarchical
Orchestration
Planning
Static
Execution
Runner
Data Management
Transport
Streaming
File-based
Storage
Shared
Distributed
Metadata Capture
Anomaly Detection
Monitoring
Provenance
Extensions
Replicated storage
Multi-Cloud Support