Access now Access now Diffblue Cover is an enterprise-grade solution for automating the generation and management of unit tests rapidly and reliably IP/ code stays within your controlled environment and is never used for LLM training. Explore our product With comprehensive integrations for CI pipelines, Diffblue Cover seamlessly fits into your current development and testing workflows with minimal disruption. Start free trial Research: Diffblue Cover vs. GitHub Copilot - Evaluating AI for Java Unit Testing at Scale Diffblue Cover is an enterprise-grade solution for automating the generation and management of unit tests rapidly and reliably in IntelliJ and CI pipelines. Unlike LLM-driven coding assistants, Diffblue Cover uses reinforcement learning to generate reliable test code that is guaranteed to run, compile and be correct — every time. Plus, it operates on-premise, so your IP/ code stays within your controlled environment and is never used for LLM training. Generate unit and regression tests 250x faster than manual test writing. Use AI Reinforcement Learning to create accurate, maintainable unit tests more efficiently. Increase code coverage. Generate & execute tests to cover the complex code that makes up your applications. Achieve unit testing at scale by incorporating Diffblue Cover into your CI pipeline to automate unit testing. Avoid unit test failures slowing down the pipeline. Reduce the impact of code quality gates on your SLDC. Keep quality high and ship faster than ever before. Empower your developers to spend up to 95% less time on manual unit test writing and maintenance; enabling them to focus more on writing application code. With comprehensive integrations for CI pipelines, Diffblue Cover seamlessly fits into your current development and testing workflows with minimal disruption. lines of code covered of developer time saved faster than a human developer Enterprise-grade AI-powered unit and regression testing for even the largest, most complex codebases. Solve your biggest application development challenges by leveraging the power of autonomous AI for unit test generation at scale. Reduce the risk, time and cost to modernize critical applications, break them down into microservices and refactor to run on public clouds. Integrate Cover directly in your CI pipeline to autonomously write unit tests for your projects. Reduce the risk, time and cost to modernize critical applications, break them down into microservices and refactor to run on public clouds. Quality assurance and high code coverage can help identify and address potential risks that could cause outages or failures after deployment. Let your developers get back to doing what they love. Automate unit testing to free up time for higher order problem solving. See how Diffblue Cover can transform your test operations. Diffblue Limited5 New Street SquareLondonEC4A 3TW Sign up for product updates, AI for Code news and more