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A self-hosted ebook library with automated processing

A YAML-based CLI for asserting the installed packages, services, files, ports, and other state of a system.

A coverage-guided fuzzer that mutates input corpora to find crashes and hangs in instrumented programs.

Inject controlled failures into services and infrastructure to test reliability and recovery behavior.

A client-side workflow tool for building, testing, and deploying Kubernetes applications.

A local API-mocking desktop app and CLI for replacing live services during development and tests.

Generate trading rules and test how their results withstand changes

Record browser journeys and turn them into editable web end-to-end tests.

A DAST scanner for finding and validating exploitable vulnerabilities in web applications and APIs.

A Kubernetes-oriented chaos engineering platform for running fault experiments and checking whether workloads stay healthy.

Develop Python in a project-aware desktop IDE with a debugger, test runner, and optional coding-agent tools.

A Windows Python IDE pairing a script editor with an interpreter, debugger, project tools and unit-test interface.

Mutate Python code and rerun its tests to find changes the suite fails to catch.

A C++ test framework for unit tests, behavior-driven cases, and basic micro-benchmarks.

An open-source service-virtualization tool for replacing network dependencies with configurable test doubles.

Usability and navigation research with local-language support

Write PHP tests with a concise test-and-expectation syntax and run them from the project command line.

Retail typefaces, custom fonts and detailed testing licenses.

Write JVM tests with JUnit Jupiter and run them through the JUnit Platform from an IDE, build tool, or console.

Describe Ruby behavior with executable examples, expectations, and test doubles from the RSpec libraries.

A Windows IDE for editing, building, debugging, testing, and deploying applications.

An open-source Go IDE with switchable build environments, Go-aware navigation and integrated testing and debugging.

Collect market history and test several strategies in one portfolio

A Java IDE that lets learners explore classes and objects while writing code.