100% coverage of critical flows in 7 days.

QA that runs itself.Catch critical bugs before your users do.

True plug-and-play testing that ends QA struggles. AI creates the tests, humans verify them, bugs get caught automatically. No training, no maintenance, no missed critical bugs.

Smart QA that ships with you
Plug-and-play solution
Made for lean teams
Not another bloated QA tool
Not another slow QA agency
You build. We test. No QA knowledge required.

Agentic AI that takes QA
off your team's plate.

Bug0 tests your staging environment and flags issues before they reach production. No setup required, no codebase access needed, no extra effort.

AI Agents

AI that explores your app, maps user flows, and writes tests automatically.

Humans

QA experts review and refine tests daily to catch edge cases and flakiness.

Infrastructure

200+ parallel test runs in under 3 minutes on highly available infra.

Test Coverage Over 4 Weeks
100% critical flow coverage in 1 week, 80% total coverage in 4 weeks.

Join the free 90 days pilot program.

No contract. No payment.
Keep the test suites we create, even if you don’t continue.

Syed Fazle Rahman
Sandeep Panda

Get a personalized demo directly from our founders within 24 hours of signing up.

"Bug0 is the closest thing to plug-and-play QA testing at scale. Since we started using it at Dub, it's helped us catch multiple bugs before they made their way to prod."
Portrait of Steven Tey
Steven TeyFounder, Dub
"Bug0 just works. It runs behind the scenes, catches real issues early, and saves us hours every week. It's like having a full QA team without the overhead."
Portrait of Kevin
KevinFounder, Hypermode

Success in numbers

Smarter QA for fast-moving teams

$10K/month

Saved per engineer

Cut company-wide QA costs by up to 80% with one simple monthly subscription.

More releases

Ship faster and catch critical bugs within minutes using automated browser testing.

100%

Critical flow coverage

Automated coverage of key user flows within your first week.

15min

QA cycles

Validate changes and catch bugs in minutes, not days.

9hrs/week

Saved per engineer

Save developer hours chasing regressions and maintaining tests.

5min

Setup time

Install the GitHub app and start testing instantly.

Seamless connectivity

Built for your workflow

Bug0 runs tests on every commit with parallel browser execution, completing over 200 test runs in under 3 minutes.

Comparative analysis

Bug0 vs traditional Alternatives

Buying tools, hiring testers, or outsourcing QA? There's a better way.

Onboarding speed
Test creation effort
Maintenance overhead
Flaky test handling
Cost-efficiency
Workflow integration
Bug0
Instant GitHub install and 100% coverage of critical flows in 1 week.
Auto-generate tests with human-verification
Self-healing & AI updates
Detects and isolates flaky tests
One simple subscription
GitHub/GitLab PR + Slack, and more coming soon.
BrowserStack / LambdaTest / Other testing tools
Complex setup (infra only)
Manual scripting needed
Full-time maintenance required
No built-in flaky handling
Pay for infra + QA engineers
No native PR reporting
Freelancers
Slow onboarding
Manual test writing
High (dependent on individuals)
Flaky bugs often missed
Cheap at small scale
No direct CI/CD integration
Traditional QA Agencies
Weeks to onboard
Manual, slow test creation
Expensive to maintain and update
Flaky tests escalate cost
Very high cost over time
Reports sent manually, not native to your tools

Swipe horizontally to see all comparisons

Intelligence built-in

Smarts baked into the product.

Our platform combines intelligent algorithms with human expertise to deliver reliable testing results.

Auto-healing tests.

Tests that fix themselves when your UI changes thanks to our AI agents.

No flaky tests.

Consistent results every time, no matter what.

Self-adapting tests.

Automatically adjusts to your app evolution.

Code-free testing.

Create tests without writing a single line of code. Just describe your user flows to our AI in natural language.

Human-verified results.

Every test is validated by QA experts.

Fast CI/CD runs.

Every time you commit, parallel browser tests kick off and wrap up 200+ runs in less than 3 minutes.

Comprehensive testing suite

Coverage you can trust.

Bug0 provides a complete suite of testing capabilities to ensure your application is thoroughly validated across all dimensions.

End-to-End (E2E) Testing

Simulates real user behavior to validate entire flows from start to finish

Regression Testing

Confirms that recent changes haven't broken previously working features

Smoke Testing

Runs a basic set of tests to ensure the core functionality is stable after a build

Flaky Test Detection

Automatically spots unstable tests that pass or fail inconsistently

Performance Test

Checks that key pages and APIs load within expected time thresholds

API Contract Tests

Validates that your APIs return the correct structure, types, and status codes

Accessibility Testing

Detects accessibility issues using tools like axe-core to ensure compliance

Visual Regression Testing

Compares UI snapshots to catch unexpected layout or style changes

Cross-Browser Testing

Runs tests across Chromium, Firefox, and WebKit for maximum browser coverage

Mobile & Device Testing

Runs tests on real desktop and mobile devices on request, not just emulators

Network Mocking & Offline Testing

Intercepts and simulates network responses to test edge cases and failures

Authentication Testing

Automates login flows and session-based behavior using browser storage state

Localization Testing

Verifies your app works correctly across different languages and regions

Get started today

No more missed bugs. No more release delays.

Bug0 runs AI-powered tests with human oversight on every pull request, so bugs never make it to production.

Book a demo with the founder

Meet the founders
behind Bug0.

From the makers of Hashnode - one of the largest networks of developers.

Backed by top investors

Accel
Salesforce Ventures
Surge
Sierra Ventures