Zentester
Ship Fearlessly with AI-Powered Testing
As AI accelerates coding - smart, scalable testing is mission-critical. Zentester brings intelligence to every layer of the testing pyramid from unit tests to E2E flows helping developers and QA engineers deliver quality at speed.
How it works
Testing, Reimagined for Dev Teams
From scenario to test suite in minutes — no scripts, no hassle.
Define Your Test Scenario
User logs in, adds item to cart, checks out. Plain English. No selectors. No complex setup.
AI Agents Test Like Humans Think
Our agents understand your app, interact naturally, and verify everything works—from UI to API to database.
Collaborate, Review, and Ship
Review AI-generated tests, refine edge cases, and watch as tests evolve with your code. Quality becomes a team sport.
Never Enough Test Coverage? Now There Is.
The Complete Testing Pyramid
Unit tests instantly cover every function. Integration tests ensure components work together. E2E tests validate real user flows.
Built for How Teams Actually Work
Developers catch bugs while coding. QA teams automate smarter and faster. Everyone shares the same quality standards.
Intelligent Test Evolution
Tests evolve with your code automatically. Smart agents understand what changed and adapt your coverage accordingly.
Coverage That Actually Matters
AI finds your riskiest code paths first. Discovers edge cases you missed. Creates tests from actual user behavior.
Merge clean, ship faster.
Shift Left Without Slowing Down
Catch issues early without slowing your team down. Zentester helps developers and QA engineers test smarter, together.
Test While You Code
Run locally. Developers spot bugs before commit, QA validates flows early.

PR-Ready From Line One
Instant test coverage for every branch. Merge confidently, review faster.

Fix Issues in IDE, Not Production
Catch failures as they happen. Debug early, ship clean code.

Quality Built In, Not Bolted On
Seamless testing for both dev and QA workflows. Less maintenance, more shipping.

See Zentester in Action

Your Testing Agents, Your Workflow
Complete, up-to-date, always-on testing no manual effort needed.
Context-Aware Intelligence
Not just files—dependencies, patterns, critical paths. Zentester agents understand your entire system.

Generate Tests in Seconds
Create comprehensive test suites faster than writing a single test manually.

Smart Test Maintenance
Code evolves? Tests adapt intelligently. Review changes, not broken tests.

Find the Bugs That Matter
Edge cases, race conditions, integration issues—catch what breaks production at 3am.

“Cursor had our team stuck in an endless loop - fix one test, break three others. Zencoder actually understands our codebase. What took us a full day of back-and-forth with Cursor, Zencoder handled in 20 minutes. Adding Zentester means we now ship verified code the same day.”


Full Stack Coverage
One Platform. Every Layer. Every Team.
From unit to security - one AI agent covers it all.

- — Unit Testing Agent:
- Fast, focused function-level validation
- — Integration Testing Agent:
- API contracts and service boundaries
- — E2E Testing Agent:
- Complete user journeys with visual verification
Quality First
Build Quality Together
Zentester brings AI agents into your existing workflow, enhancing—not replacing—your team's expertise.
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- Define scenarios in plain language, review generated tests
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- Agents interact with your app like real users
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- Run locally or in CI/CD pipelines
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- Tests evolve with your code, with your oversight
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- QA-led automation or developer-first testing