Open-source orchestration platform for scheduled and event-driven workflows as code
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LicenseApache-2.0
Kestra is an open-source, event-driven orchestration platform for building scheduled and event-driven workflows as declarative YAML flows, authored in code or a live-updating user interface.
Open-source Python workflow orchestration for resilient data pipelines
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LicenseApache-2.0
Prefect is an open-source workflow orchestration framework that turns Python functions into resilient data pipelines with scheduling, retries, and event triggers.
Open-source durable execution platform for reliable workflows
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LicenseMIT
Temporal is an open-source durable execution platform that runs code to completion through failures, self-hosted with Docker or Kubernetes or on managed Temporal Cloud.
Postgres-native task queue for durable background workflows
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LicenseMIT
Hatchet is a Postgres-native distributed task queue for background work and durable multi-step workflows, with retries, concurrency controls, and scheduled or event-driven execution through Python, TypeScript, Go, and Ruby SDKs. The MIT-licensed engine self-hosts with Docker or Lite mode, and Hatchet Cloud adds managed hosting on usage-based pricing.
Durable step functions for event-driven apps and AI agents
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LicenseSSPL-1.0 (source-available)
Inngest is a durable execution platform for event-driven apps: SDK step functions with checkpoints, retries, and waits run on serverless or your own servers.