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Sidekiq
Lake Oswego, Oregon, United States
What it is
Sidekiq is a framework for moving application work into background jobs. Its client serializes job data as JSON and places it in a Redis queue, where Sidekiq server processes retrieve and run jobs; Redis also holds job and operational data. The listed core features include scheduled jobs, error handling, a Web UI, a Ruby API, middleware, and support for long-running jobs. Pro adds batches and callbacks for coordinating groups of jobs, plus protection against job loss when a process crashes or receives a KILL signal and retries after transient Redis errors. Enterprise adds encryption, rate limiting, periodic and unique jobs, historical metrics, multi-core processing, and rolling restarts. Enterprise encryption protects only the last job argument; error messages and backtraces remain plaintext. Sidekiq is self-hosted, with Ruby as its official SDK language. OSS is free and open source under LGPL. Listed plans include Pro at $995 a year and Enterprise at $269 a month, starting at 100 threads.
For and against
For
- OSS is free and open source under LGPL.
- Scheduled jobs, error handling, and a Web UI are listed.
- Pro adds batches and callbacks for grouped jobs.
- Enterprise includes rate limiting and rolling restarts.
Against
- Sidekiq is self-hosted and Redis-backed.
- Enterprise encryption covers only the last job argument.
- Commercial priority support covers one incident per quarter.
The verdict
Sidekiq provides background processing through Redis queues, with additional workflow and operational capabilities in Pro and Enterprise. Enterprise licensing is based on production worker thread count; development and staging use are free and unlimited.
Who it suits
The maker lists OSS for hobbyists, Pro for small businesses, and Enterprise for medium to large companies. It suits Ruby application teams that use Redis and can operate a self-hosted system.
Plans and prices
Sidekiq OSS
Open source · LGPL · hobbyists
Read 3 Oct 2026 · sidekiq.org
Sidekiq Enterprise
Commercial license · starts at 100 threads · volume discounts may apply
Read 3 Oct 2026 · sidekiq.org
Sidekiq Pro
Commercial license · priority email support · no server or environment limit
Read 3 Oct 2026 · sidekiq.org
On the record
- Audience
- The maker's comparison lists hobbyists for OSS, small business for Pro, and medium to large companies for Enterprise.sidekiq.org · read 3 Oct 2026
- Core features
- The plans comparison lists scheduled jobs, error handling, a Web UI, a Ruby API, middleware, and long-running jobs across OSS, Pro, and Enterprise.sidekiq.org · read 3 Oct 2026
- Data store
- Sidekiq stores job and operational data in Redis.sidekiq.org · read 3 Oct 2026
- Deployment
- The maker documents configuring Sidekiq with Redis URLs through environment variables, including REDIS_URL and Heroku's REDIS_PROVIDER pattern.sidekiq.org · read 3 Oct 2026
- Encryption scope
- Enterprise encryption protects only the last job argument; error messages and backtraces remain plaintext.sidekiq.org · read 3 Oct 2026
- Enterprise capabilities
- Enterprise includes encryption, rate limiting, periodic jobs, unique jobs, historical metrics, multi-core processing, and rolling restarts, plus Pro features.sidekiq.org · read 3 Oct 2026
- Free trial
- The maker says it does not offer pre-sales demos or free trials, but a purchased month of Pro or Enterprise may be tried and refunded if the customer is unhappy.sidekiq.org · read 3 Oct 2026
- Integrations
- Sidekiq's wiki says server processes boot Rails, making the Rails API, including Active Record, available to jobs and workers.sidekiq.org · read 3 Oct 2026
- Job model
- The client serializes job data as JSON and pushes it into a Redis queue, where Sidekiq server processes pull and process jobs.sidekiq.org · read 3 Oct 2026
- Limits
- Enterprise licensing is based on production worker thread count; development and staging use is free and unlimited.sidekiq.org · read 3 Oct 2026
- Pro reliability
- Sidekiq Pro uses Redis RPOPLPUSH to protect jobs when a process crashes or receives a KILL signal, and its client retries delivery after transient Redis errors.sidekiq.org · read 3 Oct 2026
- Pro workflows
- Sidekiq Pro adds batches and callbacks for tracking grouped jobs and building more complex workflows.sidekiq.org · read 3 Oct 2026
- Purpose
- Sidekiq is a framework for background job processing that scales applications by performing work in the background.sidekiq.org · read 3 Oct 2026
- Support
- Commercial priority support covers one incident per quarter, has a maximum response time of two working days, and excludes the customer's application and infrastructure.sidekiq.org · read 3 Oct 2026
