Temporal, BullMQ, or AWS Step Functions: Choosing a Durable Workflow Tool in 2026

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Durable workflow problems such as refunds that never finish or jobs that restart after a crash are handled by three main tool families in 2026. Temporal is a language-agnostic engine that builds retries, timeouts, and crash recovery into its model, making it suited to serious services. BullMQ is a lightweight Redis-backed queue for Node that works well for basic background jobs, but leaves durability and exactly-once guarantees to the developer. AWS Step Functions offers a managed, JSON-defined state machine with no servers to run, though it brings higher costs and AWS vendor lock-in. The article's comparison favors Temporal for long-running, crash-sensitive processes and BullMQ for simple job queues, while Step Functions suits teams already committed to AWS.

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