Stop Writing Java Unit Tests. Start Writing the Future Finally Achievable.

Newdi’s hybrid AI writes production-ready Java tests in minutes — so you can focus on building features that matter.

Every great software product starts with a spark — an elegant algorithm, a clever abstraction, a beautifully simple API. But somewhere between concept and commit, that spark dims under the burden of unit tests.

Newdi is the world's most intelligent Java unit test generator. Not a tool, but a test-writing teammate. It understands your code, generates accurate and maintainable tests, and keeps them fresh as your logic evolves. Save 240 hours per developer per year.

60-90%
Time Reduction
80-90%
Coverage Achieved
100%
Test Synchronization
🧠
AI Processing...
@Service Business Logic
public class PaymentProcessor {
  private final ValidationService validator; Dependency
  public PaymentResult processPayment( Core Logic
    if (!validator.isValid(request)) { Validation
      throw new InvalidPaymentException(); Exception Flow
    }
    return gateway.process(request);
  }
}
BL
VAL
EX
Detecting Spring framework...
Found validation logic...
Exception handling detected...
Planning test strategy...
📥 Source Code
@Service
public class PaymentProcessor {
  public PaymentResult processPayment(
    PaymentRequest request) {
    // Complex validation logic
    if (!validator.isValid(request)) {
      throw new InvalidPaymentException();
    }
    return gateway.process(request);
  }
}
🧠
Analyzing patterns...
Planning mocks...
Generating assertions...
Optimizing coverage...
Test Quality Confidence
94% Confident
📤 Generated Tests
// ⚡ Generated in 2.3 seconds
@ExtendWith(MockitoExtension.class)
class PaymentProcessorTest {
  @Mock ValidationService validator;
  @Mock PaymentGateway gateway;
  @Test
  void processPayment_validRequest_succeeds() {
    // Given
    when(validator.isValid(any()))
      .thenReturn(true);
    // When & Then...
  }
  @Test
  void processPayment_invalidRequest_throwsException() {
    assertThrows(InvalidPaymentException.class,
      () -> processor.processPayment(request));
  }
}
v1.0
Initial
v1.1
Enhanced
v2.0
Refactored
94%
Tests Synchronized
12
Tests Updated
247
Total Coverage
🔬 Learning from your patterns:
✓
Team prefers descriptive test names
✓
Using @MockBean for Spring tests
✓
Exception tests always include message validation
✓
Given-When-Then pattern consistently used

The Future of Testing Starts Today

You were hired to build, not to test. You joined this profession to create, not to verify what you already know works. But testing consumed your time, your creativity, your passion for the craft.

Newdi changes everything. Every method is protected. Every edge case is covered. Every refactor is fearless. Your tests write themselves, evolve themselves, maintain themselves.

This isn't just automation. This is liberation.

Experience Newdi Upload Your Code Schedule Demo

Trusted by Engineers Who Value Their Time

Real developers, real results, real time saved.

"Newdi saved us 6 weeks on our legacy refactor. What used to take our team 3 months now happens in 3 weeks. The tests it generates are actually better than what we were writing manually."

Rene Hautle
Senior Engineer, Sentinel AI
240hrs saved/year

"I was skeptical about AI-generated tests until I tried Newdi. It actually understands our domain logic and generates tests I'm proud to commit. My code review comments dropped by 70%."

Srini Reddy
Director, Intel
95% coverage

"The ROI is insane. Newdi paid for itself in 2 weeks. Our junior devs are now shipping with senior-level test quality. It's like having a testing expert pair programming with everyone."

Priya Patel
Engineering Manager, Uber
2 weeks ROI time

Every Line You Change Deserves a Test. But Does Every Test Deserve Your Time?

We live in an era where software drives global finance, healthcare, commerce, and infrastructure. Yet the process of ensuring that software works — of writing and maintaining unit tests — remains mired in 20th-century mechanics.

Engineers today spend as much as 40% of their development time on testing tasks: writing assertions for known truths, mocking familiar services, reconstructing what they already understand. It's not just tedious. It's a massive cost center in time, morale, and innovation.

Contextual Intelligence

Newdi doesn't just read code—it understands your team's patterns, framework choices, and testing conventions. Every generated test reflects your unique development culture.

Lightning-Fast Generation

Transform complex business logic into comprehensive test suites in seconds. What used to take hours now happens faster than you can grab coffee.

Adaptive Maintenance

Tests evolve with your code automatically. No manual sync required—Newdi understands changes and updates tests intelligently, not blindly.

Deep Code Analysis

Advanced semantic understanding identifies edge cases, exception flows, and boundary conditions that human testers often miss.

Framework Mastery

Native understanding of Spring Boot, JUnit 5, Mockito, TestContainers, and your entire testing ecosystem. Perfect integration, zero configuration.

Quality Evolution

Continuously learning system that gets smarter with every codebase. Your testing quality compounds over time, creating exponential value.

The Intelligence Behind the Magic

Newdi isn't just automation—it's artificial intelligence purpose-built for testing. Every decision is backed by deep understanding of code semantics, team patterns, and testing best practices.

1

Semantic Code Understanding

Our AI analyzes your code at a molecular level—understanding business logic, dependencies, exception flows, and architectural patterns. It builds a complete mental model of what your code does and why it exists, enabling intelligent test generation that goes far beyond simple pattern matching.

2

Intelligent Test Strategy

Based on code analysis and learned patterns, Newdi formulates the optimal testing strategy. It considers framework conventions, team preferences, coverage goals, and complexity trade-offs to generate tests that are both comprehensive and maintainable.

3

Evolutionary Maintenance

As your code evolves, Newdi's AI tracks changes and intelligently updates tests. Rather than brute-force regeneration, it performs surgical updates—preserving custom modifications while ensuring tests remain accurate and valuable.

Built for the Modern Java Ecosystem

Newdi speaks fluent Java and understands every framework, testing library, and architectural pattern in your stack. Deep integration means zero configuration and maximum value from day one.

Spring Ecosystem

Native Spring Boot, Spring Security, Spring Data understanding. Generates @MockBean, @TestConfiguration, and integration tests that follow Spring conventions.

Testing Frameworks

JUnit 5, Mockito, TestContainers, WireMock, and AssertJ mastery. Creates idiomatic tests using the right tools for each scenario.

Data & Persistence

JPA, Hibernate, MongoDB, Redis testing strategies. Understands repository patterns and generates appropriate data layer tests.

Modern Architecture

Microservices, cloud-native patterns, reactive programming support. Generates tests for distributed systems and async processing.

Simple, Transparent Pricing

Choose the perfect plan for your organization's needs with flexible options that scale as you grow.

Monthly Annual

Starter

For small teams and startups

$110
per user/month
  • Up to 5 team members
  • 10 projects
  • Core AI test generation
  • Basic integrations
  • 8-hour support response time
Start Free Trial

Professional

For growing development teams

$250
per user/month
  • Up to 20 team members
  • Unlimited projects
  • Advanced AI test generation
  • Full CI/CD integration
  • 4-hour support response time
  • Custom test patterns
  • API access
Start Free Trial

Enterprise

For large organizations

Custom
tailored for your needs
  • Unlimited team members
  • Unlimited projects
  • Enterprise-grade security
  • Dedicated support team
  • Custom integrations
  • On-premises option
  • Advanced analytics
Contact Sales

Frequently Asked Questions

Find answers to common questions about Newdi and our AI-powered testing approach, with real-world clarity and grounded expectations.

How does Newdi AI testing differ from traditional testing tools?

Traditional testing tools require manual creation of test cases, which is time-consuming and often misses edge cases. Newdi uses a hybrid AI approach — combining pre-trained intelligence with adaptive learning — to analyze your code, understand its purpose, and generate comprehensive, maintainable test suites. This means you get meaningful coverage from day one, without lengthy setup or training periods. Over time, as patterns in your codebase emerge, Newdi refines its output to align even more closely with your team's style and priorities.

Can Newdi integrate with our existing CI/CD pipeline?

Yes, Newdi seamlessly integrates with all major CI/CD platforms including Jenkins, GitHub Actions, CircleCI, GitLab CI, Azure DevOps, and more. Our platform provides plugins and APIs that make integration straightforward, allowing you to incorporate AI-powered testing into your existing workflows without disruption.

What programming languages and frameworks does Newdi support?

Newdi currently supports Java as the primary language, with deep, native integration into the Java ecosystem — including Spring, JUnit 5, Mockito, and other widely used frameworks. This focus allows us to deliver highly accurate, production-ready tests for Java teams without compromise. Our roadmap includes expanding to other major languages and frameworks such as JavaScript/TypeScript, Python, C#, and Go, but we believe in mastering one ecosystem before broadening our scope. This ensures that when we do expand, we bring the same level of depth and reliability to every language we support.

How secure is my code with Newdi?

Security is our top priority. Newdi is SOC 2 Type II certified and employs end-to-end encryption for all data. We offer both cloud and on-premises deployment options, ensuring your code never leaves your secure environment if required. Our access controls follow the principle of least privilege, and we undergo regular security audits and penetration testing.

How long does it take to see results with Newdi?

Results with Newdi are instantaneous — not weeks or months. From the very first run, our hybrid AI system can generate high-quality, production-ready tests without any prior training on your codebase. In real-world use, teams typically see meaningful coverage improvements within hours, not days. As your team continues to work with Newdi, it learns from your unique patterns and preferences, refining its output to better match your style and priorities. This means you get immediate, tangible value on day one, with compounding benefits as the AI adapts over time.