Celery
docs.celeryq.devJobs & Queues
The battle-tested Python task queue that's been running production background jobs since long before the newer alternatives existed.
Other products from Jobs & Queues
Turns any HTTP endpoint into a durable background job with retries, concurrency limits, and step functions — no queue infra to babysit.
Write long-running background tasks as plain async TypeScript and let it handle queuing, retries, and scheduling — no Redis to run yourself.
The Redis-backed queue every serious Node.js app eventually reaches for once setInterval and cron jobs stop cutting it.
Ruby's default answer to background jobs — boringly reliable, Redis-backed, and still hard to beat a decade later.