Celery

Celery is ranked #7 of 37 in task queue software on The Geeks Club. It runs on API, Linux, macOS, Self-hosted. There is a free plan.

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Celery Free Open-source distributed task queue · install via PyPI or from source docs.celeryq.dev · 4 Oct 2026

Compared on task queue software

Deployment model: self_hosted
Custom retry policy: Yes
Scheduled jobs: Yes
Dead-letter queue: Yes
Official SDK languages: Python

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Celery

Purpose: Celery is a distributed task queue focused on real-time processing that also supports task scheduling.
Task processing: Celery sends task messages through a broker, which delivers them to worker processes for execution.
Scaling: A Celery system can use multiple workers and brokers to support high availability and horizontal scaling.
Scheduling: Celery Beat starts tasks at regular intervals for execution by available worker nodes.
Broker integrations: Documented message transports include RabbitMQ, Redis, Amazon SQS, Kafka, and Google Pub/Sub.
Broker limits: The documentation marks RabbitMQ and Redis stable, SQS stable without monitoring or remote control, and Kafka experimental without either capability.
Web framework integrations: Celery documents integrations for Django, Pyramid, Pylons, Flask, web2py, Tornado, and FastAPI.
Monitoring: Celery provides commands to inspect and manage worker nodes and documents monitoring tools including Flower and event utilities.
Security: Celery advises treating it as an unsafe component and recommends restricting broker access; supported broker backends can use SSL encryption and authentication.
Supported runtime: Celery 5.6 runs on Python 3.9 through 3.13 and PyPy 3.9 or newer.
Windows support: The project says Windows is not officially supported, although it may work.
Support channels: The project points users to its mailing list, IRC channel, issue tracker, and community resources for help.
License: Celery is open source and licensed under the New BSD License.
Price from: Free

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Where it ranks on The Geeks Club

Best Task Queue Software in 2026#7 of 37

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Sources

docs.celeryq.dev/en/stable/· checked 4 Oct 2026
docs.celeryq.dev/en/stable/getting-started/introduction.· checked 4 Oct 2026
docs.celeryq.dev/en/stable/userguide/periodic-tasks.html· checked 4 Oct 2026
docs.celeryq.dev/en/stable/getting-started/backends-and-· checked 4 Oct 2026
github.com/celery/celery· checked 4 Oct 2026
docs.celeryq.dev/en/stable/userguide/monitoring.html· checked 4 Oct 2026
docs.celeryq.dev/en/stable/userguide/security.html· checked 4 Oct 2026