Get Advice Icon

Need advice about which tool to choose?Ask the StackShare community!

Celery
Celery

849
504
+ 1
239
Sidekiq
Sidekiq

798
375
+ 1
403
Add tool

Celery vs Sidekiq: What are the differences?

Developers describe Celery as "Distributed task queue". Celery is an asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well. On the other hand, Sidekiq is detailed as "Simple, efficient background processing for Ruby". Sidekiq uses threads to handle many jobs at the same time in the same process. It does not require Rails but will integrate tightly with Rails 3/4 to make background processing dead simple.

Celery and Sidekiq are primarily classified as "Message Queue" and "Background Processing" tools respectively.

"Task queue" is the top reason why over 84 developers like Celery, while over 120 developers mention "Simple" as the leading cause for choosing Sidekiq.

Celery and Sidekiq are both open source tools. It seems that Celery with 12.7K GitHub stars and 3.3K forks on GitHub has more adoption than Sidekiq with 9.66K GitHub stars and 1.66K GitHub forks.

StackShare, SendGrid, and New Relic are some of the popular companies that use Sidekiq, whereas Celery is used by Sentry, Ansible, and OpenLabel. Sidekiq has a broader approval, being mentioned in 346 company stacks & 77 developers stacks; compared to Celery, which is listed in 271 company stacks and 77 developer stacks.

What is Celery?

Celery is an asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well.

What is Sidekiq?

Sidekiq uses threads to handle many jobs at the same time in the same process. It does not require Rails but will integrate tightly with Rails 3/4 to make background processing dead simple.
Get Advice Icon

Need advice about which tool to choose?Ask the StackShare community!

Why do developers choose Celery?
Why do developers choose Sidekiq?

Sign up to add, upvote and see more prosMake informed product decisions

What are the cons of using Celery?
What are the cons of using Sidekiq?
    Be the first to leave a con
    What companies use Celery?
    What companies use Sidekiq?

    Sign up to get full access to all the companiesMake informed product decisions

    What tools integrate with Celery?
    What tools integrate with Sidekiq?
    What are some alternatives to Celery and Sidekiq?
    RabbitMQ
    RabbitMQ gives your applications a common platform to send and receive messages, and your messages a safe place to live until received.
    Kafka
    Kafka is a distributed, partitioned, replicated commit log service. It provides the functionality of a messaging system, but with a unique design.
    Amazon SQS
    Transmit any volume of data, at any level of throughput, without losing messages or requiring other services to be always available. With SQS, you can offload the administrative burden of operating and scaling a highly available messaging cluster, while paying a low price for only what you use.
    ActiveMQ
    Apache ActiveMQ is fast, supports many Cross Language Clients and Protocols, comes with easy to use Enterprise Integration Patterns and many advanced features while fully supporting JMS 1.1 and J2EE 1.4. Apache ActiveMQ is released under the Apache 2.0 License.
    ZeroMQ
    The 0MQ lightweight messaging kernel is a library which extends the standard socket interfaces with features traditionally provided by specialised messaging middleware products. 0MQ sockets provide an abstraction of asynchronous message queues, multiple messaging patterns, message filtering (subscriptions), seamless access to multiple transport protocols and more.
    See all alternatives
    Decisions about Celery and Sidekiq
    No stack decisions found
    Interest over time
    Reviews of Celery and Sidekiq
    Review ofSidekiqSidekiq

    Pretty good post. I found your website perfect for my needs bullet force

    How developers use Celery and Sidekiq
    Avatar of Kalibrr
    Kalibrr uses CeleryCelery

    All of our background jobs (e.g., image resizing, file uploading, email and SMS sending) are done through Celery (using Redis as its broker). Celery's scheduling and retrying features are especially useful for error-prone tasks, such as email and SMS sending.

    Avatar of Cloudify
    Cloudify uses CeleryCelery

    For orchestrating the creation of the correct number of instances, managing errors and retries, and finally managing the deallocation of resources we use RabbitMQ in conjunction with the Celery Project framework, along with a self-developed workflow engine.

    Avatar of MOKA Analytics
    MOKA Analytics uses CeleryCelery

    We maintain a fork of Celery 3 that adds HTTPS support for Redis brokers. The Winning Model currently uses Celery 3 because Celery 4 dropped support for Windows.

    We plan on migrating to Celery 4 once Azure ASE supports Linux apps

    Avatar of SmartLogic
    SmartLogic uses SidekiqSidekiq

    We turn to Sidekiq when we need to run background jobs in a Rails app, which we do for just about every Rails app we write. We especially like the ops tools that come with Sidekiq, which make it easy to monitor and maintain.

    Avatar of Tim Lucas
    Tim Lucas uses SidekiqSidekiq

    Background processing of Pushover push notifications to admins when sales occur, payments processing via Pin Payments, Campaign Monitor transaction email sending, and Intercom event API posting.

    Avatar of Yaakov Gesher
    Yaakov Gesher uses CeleryCelery

    We used celery, in combination with RabbitMQ and celery-beat, to run periodic tasks, as well as some user-initiated long-running tasks on the server.

    Avatar of Told
    Told uses SidekiqSidekiq

    Sidekiq is used extensively for a multitude of background jobs, everything from audio/video post-processing to sending push notifications.

    Avatar of Dieter Adriaenssens
    Dieter Adriaenssens uses CeleryCelery

    Using Celery, the web service creates tasks that are executed by a background worker. Celery uses a RabbitMQ instance as a task queue.

    Avatar of Jeff Flynn
    Jeff Flynn uses SidekiqSidekiq

    We offload our background processing tasks (photo sizing, watermarking, etc.) to Sidekiq to keep our app's performance optimal.

    How much does Celery cost?
    How much does Sidekiq cost?
    Pricing unavailable
    Pricing unavailable