Sim vs Trigger.dev
Comparing two open source alternatives to Make and Zapier. Use the comparison below to decide which one fits your needs.

Sim
Apache-2.0Sim is an open-source workspace to build, deploy, and orchestrate AI agents and agentic workflows. Visually connect LLMs, tools, and data sources without giving up control.

Trigger.dev
Apache-2.0Open-source platform for building and deploying reliable background jobs, scheduled tasks, and AI workflows in TypeScript.
Side-by-side comparison
Sim | Trigger.dev | |
|---|---|---|
| License | Apache-2.0 | Apache-2.0 |
| Self-hostable | Yes | Yes |
| GitHub Stars | 29,475 | 16,133 |
| Forks | 3,793 | 1,420 |
| Open Issues | 301 | 425 |
| Last Commit | Aug 26, 2026 | Aug 26, 2026 |
| First Released | Jan 5, 2025 | Nov 30, 2022 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
Similar open source alternatives

Kestra
Event-driven workflow orchestration platform with a YAML-based pipeline DSL, 500+ plugins, and a built-in UI editor.
Zapier
Flowise
Flowise is an open-source, visual, low-code/no-code tool designed to help users build AI agents and sophisticated LLM-powered workflows through a drag-and-drop interface. It features a Node.js backend and a React frontend, along with modular components for integrations and API documentation—making it accessible to both developers and non-technical users.
Make
n8n
Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.
Make
Apache Airflow
Apache Airflow is a platform to programmatically author, schedule, and monitor complex workflows. Build pipelines as code and orchestrate your data jobs with rich observability.
Zapier
Huginn
Self-hosted automation platform for building agents that monitor and act on your behalf — a hackable, open source alternative to IFTTT and Zapier.
IFTTT
Automatisch
The open source Zapier alternative. Build workflow automation without spending time and money.
Zapier