Cronium is a powerful, self-hosted automation platform designed to simplify the scheduling and execution of scripts, workflows, and HTTP requests. Built with modern technologies and a focus on developer experience, Cronium provides a comprehensive solution for task automation with both local and remote execution capabilities.

• Schedule scripts (Bash, Node.js, Python) and HTTP requests
• Flexible cron expressions with visual editor
• One-time and recurring schedules
• Timezone support

• Chain multiple events into complex workflows
• Conditional logic and branching
• Data passing between workflow steps
• Visual workflow builder

• Local Execution: Isolated Docker containers for security
• Remote Execution: SSH-based execution on remote servers
• Server Management: Organize and manage multiple execution targets

• Runtime Helpers: Built-in functions for data management
  • cronium.input() / cronium.output() - Pass data between events
  • cronium.getVariable() / cronium.setVariable() - Manage runtime variables
  • cronium.event() - Access event metadata
• Interactive Terminal: Real-time script execution with xterm.js
• Version Control: Track changes and rollback when needed

• Real-time execution logs via WebSockets
• Execution history and status tracking
• Performance metrics and analytics
• Error notifications and alerts

• Communication: Slack, Discord, Teams, Email notifications
• Tools: Extensible plugin system for custom integrations

• Role-based permissions (Admin, User, Viewer)
• Encrypted storage for sensitive data
• SSH key management
• Isolated execution environments

• Next.js 15 with App Router for the web interface
• TypeScript for type safety
• TailwindCSS 4 for styling
• React Hook Form + Zod for form validation
• tRPC for type-safe API communication

• Go microservices for orchestration and runtime
• PostgreSQL with Drizzle ORM
• Docker for containerized execution
• WebSockets for real-time features

• Turborepo for monorepo management
• PNPM for package management
• Docker Compose for local development
• Self-hosted deployment options

cronium/
├── apps/
│   ├── cronium-app/      # Main web application
│   ├── cronium-info/     # Documentation site
│   ├── orchestrator/     # Go orchestration service
│   └── runtime/          # Go runtime service
├── packages/
│   ├── ui/               # Shared UI components
│   └── config-*/         # Shared configurations
├── infra/                # Infrastructure and deployment
└── docs/                 # Documentation

• DevOps Automation: Scheduled backups, deployments, and maintenance tasks
• Data Processing: ETL pipelines, report generation, data synchronization
• Monitoring: Health checks, uptime monitoring, alert systems
• Integration Workflows: Connect multiple services and APIs
• Testing: Automated test runs, smoke tests, regression testing
• Notifications: Scheduled reminders, status updates, digest emails

• Self-Hosted: Complete control over your data and infrastructure
• Modern Stack: Built with the latest technologies for performance and reliability
• Developer-Friendly: Intuitive UI with powerful scripting capabilities
• Extensible: Plugin system for custom integrations
• Open Source: Community-driven development and transparency

• Advanced workflow templates
• Kubernetes support for execution
• Advanced monitoring dashboards

We welcome contributions! Cronium is in active development, and we're excited to work with the community to make it even better.

• Report bugs and request features through GitHub Issues
• Join our Discord community for discussions
• Check our Contributing Guide (coming soon)

Cronium is dual-licensed under:

• GNU Affero General Public License v3.0 (AGPL-3.0) — You are free to use, modify, and redistribute Cronium, provided that any modifications you make and deploy (including over a network) are also released under the AGPL.
• Commercial License — If you wish to use Cronium in a way that does not comply with the AGPL (for example, to offer it as a closed-source SaaS or embed it in a proprietary product), you must obtain a commercial license from us.

For commercial licensing inquiries, please contact addisondrewmoore@gmail.com.

See LICENSE-AGPL.md for the full AGPL text and COMMERCIAL-LICENSE.md for commercial terms.

Built with ❤️ by the Cronium team and contributors.

Special thanks to all the open-source projects that make Cronium possible.