BullMQ

BullMQ is a powerful, production-ready message queue that enables teams to orchestrate background jobs and data pipelines at massive scale.

Key Features:

• Multi-Language - Available for Node.js, Bun, Python, Elixir, and PHP with a unified Redis-based queue.
• High Performance - Queue over 250,000 jobs per second with optimized Redis-backed processing.
• Job Scheduling - Schedule delayed, prioritized, and rate-limited jobs with fine-grained control.
• Flow Pipelines - Build parent-child job dependencies and complex processing workflows.
• Concurrency Control - Configure per-worker concurrency to maximize throughput across your cluster.
• Truly Open Source - MIT licensed with no artificial limits on workers or concurrency.

Whether you're running AI pipelines, processing batch data, or managing video transcoding, BullMQ provides enterprise-grade reliability trusted by thousands of companies.