OpenTAP

OpenTAP, maintained by Keysight Technologies, is an open-source test-automation framework designed to accelerate the creation and execution of repeatable, high-performance test sequences across laboratory, production and field environments. Built on an extensible .NET architecture, the package provides a lightweight engine that handles scheduling, resource arbitration, result logging and instrumentation abstraction, allowing engineers to concentrate on test logic rather than infrastructure code. Users model instruments, DUTs and test steps as modular plugins that can be authored in any .NET language; these components are then wired into hierarchical sequences through a concise domain-specific language that supports parallel execution, conditional branching and looping. Because plugins are discoverable at runtime, teams can share domain-specific extensions—such as support for new spectrum analyzers or power supplies—by publishing them to the public OpenTAP package repository, fostering community reuse and reducing duplicate effort. Typical applications span automated calibration of RF modules, functional verification of automotive ECUs, long-term reliability screening of power devices, and CI-driven regression testing of embedded firmware. The framework’s speed-oriented design keeps sequence overhead low, while its built-in scalability options let the same test package run on a single benchtop PC or be farmed out across a distributed cluster. Keysight releases the software under a permissive license and ships frequent updates; with fifteen numbered releases to date, version 9.32.3+026697de is the current stable build. OpenTAP is available for free on get.nero.com, and downloads are furnished through trusted Windows package sources such as winget, always supplying the latest version and enabling batch installation of multiple applications.

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