Open source alternatives to Temporal

One project on starwire does the same job. Ranked by how much of what Temporal does each one covers, read from its README and website. Ties go to the most active.

What Temporal does

Durable workflow executioncore
Automatic retries and recoverycore
Long-running timers and scheduling
SDKs in many languages
Workflow history and visibility
Versioning
Cloud or self-hosted

Each dot in the table is one job, in this order. Square dots are core jobs and count double. Full means yes, half means partly. "See the evidence" under a project shows the line behind each one. Coverage is what a project documents, not how well it works or how hard it is to move to. How we score this

Project	Covers	Stars	Commits, 12 weeks	Last release	Closed vs opened	Setup	License
dbosify-pyDrop-in Temporal replacement that stores workflow state in Postgres	Replaces it72%	210+1	0	5 months ago	Too few	For developers	MIT
Covers all 2 core jobs. Partly: Workflow history and visibility. Not shown: SDKs in many languages; Versioning.See the evidence Durable workflow executioncoreYesrun durable workflows, activities, signals, updates Automatic retries and recoverycoreYesretries, and recovery without needing any infrastructure Long-running timers and schedulingYesbecome DBOS steps and durable sleeps SDKs in many languagesNot shownNeither the README nor the website mentions it. Workflow history and visibilityPartlyGet real-time visibility into workflow health and performance. VersioningNot shownNeither the README nor the website mentions it. Cloud or self-hostedYeswithout needing any infrastructure except Postgres

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