TrialValid has no affiliate or commercial relationship with Sidekiq or Contributed Systems. Everything here comes from the Sidekiq home page, its Pro and Enterprise pages and its about page, read on 2026-10-19.
At a glance
| Question | Sidekiq |
|---|---|
| What it is | A library that runs background jobs for Ruby applications, with a paid Pro and Enterprise edition on top of the open source core. |
| What it costs (checked 2026-10-19) | Free under the LGPL, Pro at $99 a month or $995 a year, and Enterprise from $269 a month per 100 threads. |
| Who built it | An open source project started by Mike Perham in 2012, sold by Contributed Systems LLC of Portland, Oregon. |
| Who it suits | Rails and Ruby teams that outgrow simple job queues and want batches, reliability and support. |
| Verdict | Start on the free version. Buy Pro when you need batches or crash safe jobs, and Enterprise when rate limits, cron jobs and unique jobs matter. |
What Sidekiq is
Sidekiq moves slow work out of the request that triggered it. A web request can hand a job to Sidekiq, which runs it later in a separate process, so a signup does not have to wait for an email or an import to finish. The home page describes it as simple, efficient background jobs for Ruby.
It is a developer tool, not a hosted service with a dashboard to sign up for. You add it to your application and run it on your own servers. The open source edition is free, and the commercial editions add features and priority email support.
Features worth knowing
- The home page compares three editions: open source, Pro and Enterprise. All three list scheduled jobs, error handling, a web interface, middleware and long running jobs.
- Pro adds batches, enhanced reliability, worker metrics and expiring jobs. Its page says it uses a Redis command so jobs are not lost if a process crashes.
- Pro also lists pausing queues, sending job metrics to Statsd, and searching for jobs in the web interface.
- Enterprise adds rate limiting, periodic jobs, unique jobs, historical metrics, multi process mode, rolling restarts and encryption of job data.
- The Pro and Enterprise pages say both include priority email support, and they describe delivery through a private gem server using credentials you receive after you buy.
Who is behind it
The about page says Sidekiq is an open source project started by Mike Perham in 2012 and names a list of contributors. The page footer gives the copyright to Contributed Systems LLC and says the site was made in Portland, Oregon. We did not read anything about staff numbers or revenue.
Sidekiq pricing
| Edition | Price | License | Support | How you buy |
|---|---|---|---|---|
| Open source | Free | LGPL | None | Not applicable |
| Pro | $99 a month or $995 a year | Commercial | Credit card | |
| Enterprise | From $269 a month per 100 threads, volume discounts may apply | Commercial | Credit card or invoice |
Prices as printed on the Sidekiq home page on 2026-10-19. The Pro page shows $995 a year and the Enterprise page shows a starting price of $269 a month. The home page says all sales come with a two week refund period.
Alternatives
Other Ruby job systems include Resque, Delayed Job, GoodJob and Solid Queue. We list names only and have not compared them.
Who it fits
A small Rails app can stay on the free edition for a long time. The paid editions answer specific needs: grouping jobs into a batch that fires a callback, protecting jobs from process crashes, or rate limiting calls to an outside service.
If a missed background job costs you money, as with a billing job that must run exactly once, the reliability features of Pro and the unique jobs feature of Enterprise are the parts to read closely.
Is it worth it
Pro at $99 a month is a small bill against an engineer's time if batches or crash safety solve a real problem. Enterprise starts at $269 a month per 100 threads, so check how many threads you actually run before you decide.
The commercial license also matters to some companies, since the home page lists the open source edition under the LGPL and the paid editions under a commercial license.
How it relates to a card-backed trial
Sidekiq has no trial. You buy with a card, and the home page says every sale carries a two week refund period. A card-backed trial in a SaaS product works differently: the buyer uses the product first, with a card held at sign-up, and pays at the end. If your own app uses Sidekiq to run trial capture jobs, the reliability of those jobs is the part that protects the buyer, which is why Product describes capture retries with idempotency keys.
Sourced facts
| Fact | Read on | Vendor page |
|---|---|---|
| The open source edition is free and licensed under the LGPL. | 2026-10-19 | Pricing page |
| Pro costs $99 a month or $995 a year and is bought with a credit card. | 2026-10-19 | Pricing page |
| Enterprise starts at $269 a month per 100 threads, with volume discounts that may apply. | 2026-10-19 | Pricing page |
| All sales carry a two week refund period, per the home page. | 2026-10-19 | Pricing page |
| Pro adds batches, enhanced reliability, worker metrics and expiring jobs. | 2026-10-19 | Pricing page |
| Enterprise adds rate limiting, cron jobs, unique jobs, historical metrics, multi process mode and encryption. | 2026-10-19 | Pricing page |
| Sidekiq is an open source project started by Mike Perham in 2012. | 2026-10-19 | Company page |
| The footer credits Contributed Systems LLC and Portland, Oregon. | 2026-10-19 | Company page |
Is Sidekiq free?
The open source edition is free under the LGPL. Pro and Enterprise are paid editions with a commercial license.
How much is Sidekiq Pro?
The home page lists $99 a month or $995 a year, as read on 2026-10-19.
Does Sidekiq Enterprise have a fixed price?
It is listed as starting at $269 a month per 100 threads, and volume discounts may apply, so your price depends on how many threads you run.