Engineers Hate Flaky Tests. We can help.
Trunk detects, quarantines, and eliminates flaky tests from your code base. Flaky test management that works with any language, any test runner, and any CI provider.
The CI reliability platform trusted by teams that ship fast
The flaky test impact analysis
Engineering hours lost per month
56
CI hours wasted per month
48
Private Preview: Trunk Flaky Tests is available on-premise. Request access →
Group Related Failures with AI
Our flaky test detection groups related failures - whether tests pass locally but fail in CI, or break intermittently across environments - helping you monitor failure reasons, identify patterns, and track trends over time for faster issue resolution.
Auto-quarantine Flaky Tests
Automatically quarantine flaky tests to eliminate test re-runs and unblock CI - no code changes required. Quarantined tests continue to run in, but failing flakes won’t break main or fail CI workflows.
Integrated Ticketing
Improve test reliability by ensuring flaky tests are owned and resolved using the seamless ticketing integration.
"I primarily focused on the flaky tests tab and found all the information I sought. The app provided an excellent summary of our E2E pain points."
Flaky Test Analytics
AI-powered insights automatically group similar failures and track test stability over time. Spot trends and patterns without sifting through endless logs.
Build with Webhooks
Subscribe to webhooks and get real-time updates for quarantines, failures, resolutions, or any other flaky test events that matter to your team.
Prioritize the Worst Offenders
Pinpoint the repositories, teams, and services that hurt your test reliability the most.
Historical Test Status
Track test status over time, from healthy to flaky to broken, and use these transitions to determine what code or environment changes led to flakiness.
Real-time Alerts
Get alerted instantly when a test becomes flaky or a flaky test is fixed with the built-in Slack integration.
Flaky Test Product Overview
Watch the overview to see how Trunk helps developers detect, quarantine, and resolve flaky tests.
See Test Results in PR Comments
Stay ahead of flaky test issues by tracking failures and quarantined tests where it matters most.
Test Status History
Track each test's status history, including the flake rate and unique failure reasons, to help debug and stabilize your critical flaky tests.
Environment Segmentation
Find flaky and problematic tests impacted by elusive environmental factors by separating test runs per environment.
"We would have never known how many flaky tests we had exactly, or to what level each of them was flaky. Now we say it meets this level, and that's it - it's quarantined."
See Test Run Details
Quickly diagnose test failures with detailed insights. View specific failure reasons, job durations, and commit history in one place. Identify patterns across multiple runs and drill into stack trays for precise debugging.
Trunk integrates with all the technologies you’ll ever need.
Flaky tests are tests that fail and pass inconsistently, even when the code hasn't changed. They mess with the reliability of your test suite and can waste valuable development time.
Flaky tests usually come from things like race conditions, unstable dependencies, or shared test data. They’re caused by issues that are hard to reproduce and fix, like improper test setups or asynchronous operations.
Trunk Flaky Tests finds, quarantines, and removes flaky tests from your code. It helps you identify patterns, figure out why your tests are flaky, and fix them before they slow down your team.
Flaky tests make developers waste time rerunning tests, digging through logs, and chasing problems that might not exist. Over time, they slow down your CI pipeline and make it harder to release code.
Any test can be flaky, including unit tests, integration tests, end-to-end tests, or UI tests. They are especially common in systems that involve significant concurrency or external dependencies.
Trunk uses AI to recognize the different ways a single test fails. It groups these failures so you can see patterns and fix the root cause, with full context of what’s happening.
To avoid flaky tests, you need stable test data, proper handling of asynchronous events, and isolated test environments. Trunk helps by automatically catching flaky tests and letting you quarantine them without blocking progress.
Trunk works with all major CI providers, including GitHub Actions, Jenkins, CircleCI, and Bitbucket Pipelines. It integrates easily with your existing tools and workflows.
You’ll get real-time alerts when a test becomes flaky. You can also track the history of flaky tests and get detailed insights into their causes, then use tools like Jira to make sure they're fixed.
Trunk automatically quarantines flaky tests during your CI runs. This means the flaky tests won't break your pipeline, but they’re still tracked and monitored.
Setting up Trunk Flaky Tests takes just a few minutes. Follow the setup guide here and you’ll be up and running quickly.
Trunk tracks metrics like flaky test rates, CI time per pull request, and time wasted due to flakiness. These numbers help you measure the real impact of flaky tests on your team’s productivity.
Trunk is trusted by companies like Zillow, Metabase, Vidyard, and Waabi to keep their tests stable and their CI pipelines running smoothly.
