
Why We Open Sourced Passmark, Bug0’s AI Regression Testing Tool
April 3, 2026 · 5 min read
1-2 weeks
100% critical flows coverage
0%
Flake rate (tests auto-heal)
$150K+
Saved vs in-house QA hire
200+
Engineering teams use Bug0
SOC 2
SOC 2 certified

AI maps critical user flows and drafts the test plan.
Agentic AI creates and maintains end-to-end test suites automatically.
Locators adapt to UI changes. Flakes get caught early.
Forward-deployed engineers review results, file bugs, and unblock the release.
CI/CD test automation runs on every PR with a release-ready smoke.
We test real user journeys that mirror production use, from sign up and authentication to checkout, roles and permissions, and data export.
Validate the full payment workflow in a SaaS dashboard or a purchase flow in an e-commerce app.
Automated test runs on a schedule: daily, nightly, or before a release to keep stability between deployments.
Nightly runs verifying login, billing, and key dashboard actions before each workday.
Checks that recent merges don't break existing functionality across the app. Runs in CI and as part of your release cycle.
Validating that the settings page or onboarding flow still works after a UI refactor.
Quick sanity checks that confirm critical pages and actions work right after a deploy.
Verifying sign in, home page load, and API health post-deploy.
Validate your app across major browsers (Chrome, Firefox, Safari, Edge) and common viewports.
Ensuring forms and charts render correctly on desktop, tablet, and mobile.
Confirm UI and behavior on real devices and operating systems when needed.
Running suites on macOS Safari, Windows Edge, iOS Safari, and Android Chrome.
Design tests for business-specific workflows and integrations.
Multi-step admin approvals, analytics exports, or payment and CRM integrations.
“We plugged Bug0 into our CI and had our critical flows covered within a week. Like having a proactive QA engineer reviewing every deploy.”

“Bug0 is the closest thing to plug-and-play QA testing at scale. It's helped us catch multiple bugs before they made it to prod.”

“Bug0 gives us the speed of AI-native automation with the accuracy of human QA. We stopped worrying about flaky tests entirely.”

“We'd been putting off test coverage for months. Bug0 had our critical flows covered in under a week. No scripts, no maintenance burden.”

“We used to skip regression tests before releases because they took too long to maintain. Bug0 runs them on every PR now. We haven't shipped a regression in three months.”

90-day pilot. Critical flows covered in your first week.
Dedicated QA engineer (forward-deployed engineer) included. No hiring overhead.

April 3, 2026 · 5 min read

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Go on vacation. Bug0 never sleeps. - Your AI QA engineer runs 24/7
Your AI QA engineer runs 24/7 — on every commit, every deploy, every schedule. Full coverage while you're off the grid.