Diffblue Cover

Plans and prices

Every plan, in full

On the record

CI integrations

The maker lists GitHub, GitLab, Maven, Jenkins, Azure, and AWS among supported pipeline environments.cover-docs.diffblue.com · read 7 Oct 2026

Company

Diffblue was founded in 2016 as a spin-out of the University of Oxford and is headquartered in Oxford.diffblue.com · read 7 Oct 2026

Data handling

The maker says Cover runs locally in the customer environment without requiring a cloud service and that no data leaves the organization.cover-docs.diffblue.com · read 7 Oct 2026

License connectivity

Cover requires a remote check with Diffblue’s licensing server each time it is used; offline activation is available only for Enterprise Edition through the CLI.cover-docs.diffblue.com · read 7 Oct 2026

Optimization

Cover Optimize selects the unit tests needed to validate code changes and is integrated into Cover CLI and Cover Pipeline.cover-docs.diffblue.com · read 7 Oct 2026

Project prerequisites

The getting-started page lists Java 8, 11, 17, or 21 compatible source or Kotlin, Maven 3.2.5+ or Gradle 4.9+, and a project that compiles and has no failing unit tests.cover-docs.diffblue.com · read 7 Oct 2026

Purpose

Diffblue Cover automatically writes human-like Java unit tests for Java and Kotlin projects.cover-docs.diffblue.com · read 7 Oct 2026

Refactoring

Cover Refactor can suggest and apply Java code refactorings intended to improve observability and testability.cover-docs.diffblue.com · read 7 Oct 2026

Reports

Cover Reports visualizes test coverage, coverage risk, testability, and code complexity.cover-docs.diffblue.com · read 7 Oct 2026

Support

Community support is provided through the Community forum, while more comprehensive support is included with Teams and Enterprise editions.info.diffblue.com · read 7 Oct 2026

Test frameworks

The plugin getting-started page states that JUnit and TestNG are supported.cover-docs.diffblue.com · read 7 Oct 2026

Test quality

The maker says generated tests compile, run, and validate the current behavior of the code.cover-docs.diffblue.com · read 7 Oct 2026

Workflows

Cover is offered as an IntelliJ plugin, a command-line tool, and a CI pipeline integration.cover-docs.diffblue.com · read 7 Oct 2026

Alternatives to Diffblue Cover

KS Katalon StudioAndroidiPhone & iPad+7 T testRigorAndroidiPhone & iPad+7 A AutifyAndroidiPhone & iPad+5 T TestsigmaAndroidiPhone & iPad+7 K KeployWebWindows+5 A ACCELQAndroidiPhone & iPad+6 T TestimAndroidiPhone & iPad+3 M MomenticAndroidiPhone & iPad+3

Every alternative, ranked