EverythingXiaomi
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
List your app
Vendor dashboard

Captain

B
B tier on Test Flakiness Management SoftwareScore 7.3 · #2 of 29
Android app
Not listed
Free plan
Yes
Runs on
api, Linux, Mac, Web, Windows
rwx.com
The Captain homepage
Visit site Alternatives

Summary

Captain is an open source command-line tool for detecting flaky tests and managing test execution. It can measure test reliability, retry failed tests and quarantine flaky ones to help unblock builds. By tracking test runtimes, it can balance test files across parallel jobs. Its documented framework integrations include xUnit, ExUnit, Ginkgo, go test, Bun, Cucumber, Cypress, Jest, Karma, Mocha, Playwright, TestCafe, Vitest, PHPUnit, pytest, unittest, minitest and RSpec. CI integrations listed in its documentation include RWX, GitHub Actions, CircleCI, Buildkite and GitLab. Framework integrations can send results to a web interface for analyzing flakes, retries, quarantine and suite partitioning. Feature availability varies between frameworks: xUnit does not include partitioning, while Karma does not list retries or partitioning. The free OSS plan includes file-based configuration, partitioning, flaky-test tracking and quarantine, and retries. Pro costs $10 per million test results uploaded and adds flaky-test analytics and performance trends with 90-day retention.

Who it is for

Captain suits development teams that want to track flaky tests, retry or quarantine failures, and distribute test files across parallel jobs. Teams should check framework-specific feature availability before relying on partitioning or retries.

What is good

  • Detects flaky tests and measures test reliability.
  • Can retry failures and quarantine flaky tests.
  • Balances test files using runtime tracking.
  • Integrates with several test frameworks and CI platforms.
  • Free OSS plan includes retries and partitioning.

What to know first

  • Feature availability varies by framework.
  • xUnit integration does not include partitioning.
  • Karma does not list retries or partitioning.
  • Pro analytics retain trends for 90 days.

Verdict

Captain brings flaky-test handling and suite partitioning into a command-line workflow with a web interface for reviewing results. Check its framework-specific limits, and note that Pro is priced per million uploaded test results.

Captain plans and pricing

All plans
OSS Free Free file-based configuration · parallel test suite partitioning · flaky test tracking and quarantine · retry failed tests rwx.com · 30 Sept 2026
Pro $10 Per million test results uploaded automatically rebalanced partitions · UI quarantine · flaky test analytics · 90 day performance trend retention rwx.com · 30 Sept 2026
Enterprise Not published Custom custom contracts · custom invoicing · unlimited scale rwx.com · 30 Sept 2026

Compared on test flakiness management software

Free plan
Yesrwx.com
Flake detection
Yesrwx.com
Quarantine workflow
Yesrwx.com
Rerun policies
Yesrwx.com
Supported frameworks
xUnit, ExUnit, Ginkgo, go test, Bun, Cucumber, Cypress, Jest, Karma, Mocha, Playwright, TestCafe, Vitest, PHPUnit, pytest, unittest, Ruby Cucumber, minitest, RSpecrwx.com

Facts

Product
Captain is an open source CLI for detecting flaky tests, retrying and quarantining them, and partitioning test files for parallel execution.rwx.com · 30 Sept 2026
Test reliability
Captain can measure test reliability and automatically detect flaky tests.rwx.com · 30 Sept 2026
Retries and quarantine
Captain can retry failed tests and quarantine flaky tests to unblock builds.rwx.com · 30 Sept 2026
Parallel execution
Captain tracks test runtimes and balances test files across parallel jobs.rwx.com · 30 Sept 2026
Framework support
The documented integrations include xUnit, ExUnit, Ginkgo, go test, Bun, Cucumber, Cypress, Jest, Karma, Mocha, Playwright, TestCafe, Vitest, PHPUnit, pytest, unittest, minitest, and RSpec.rwx.com · 30 Sept 2026
CI integrations
Captain documentation lists RWX, GitHub Actions, CircleCI, Buildkite, and GitLab as CI platform integrations.rwx.com · 30 Sept 2026
Cloud interface
Captain's test framework integration lets users analyze results in a web interface and track flakes, quarantine or retry tests, and partition suites.rwx.com · 30 Sept 2026
Pro analytics
Captain Pro provides analytics on problematic flaky tests and test performance trends with 90 day retention.rwx.com · 30 Sept 2026
Feature availability
Feature availability varies by framework; for example, the listed xUnit integration does not include partitioning and Karma does not list retries or partitioning.rwx.com · 30 Sept 2026
Security
RWX says it is SOC 2 Type 2 compliant and that Drata tests its security and IT infrastructure daily.rwx.com · 30 Sept 2026
Support
RWX offers documentation, GitHub issues for open source tools, Discord access to its engineering team, and shared Slack channels for existing customers.rwx.com · 30 Sept 2026

Company

Maker and headquarters
The maker is ReadWriteExecute, Inc.; its About page describes RWX as a cloud computing platform but does not state a headquarters or founding year.rwx.com · 30 Sept 2026
Founded
2022rwx.com · 28 Sept 2026
Headquarters
Columbus, Ohio, United Statesrwx.com · 28 Sept 2026

Best Captain alternatives

See all 12
Btier Bitbucket Pipelines #1 7.3 $3.65/moBtier Cypress #3 7.3 $67/moBtier HyperExecute #4 7.3 $103,129/moBtier Qualflare #5 7.3 $16/moBtier TeamCity #6 7.3 $15/moBtier Testery #7 7.3 $500/mo

Where it ranks on Everything Xiaomi

Is Captain yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote Captain

Sources