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LINQPad 9 is an interactive development environment designed as “The .NET Programmer’s Playground,” enabling developers to prototype, test, and refine C#, F#, and VB.NET code without creating a full Visual Studio project. Published by Joseph Albahari and currently at version 9.6.6, the software supports rapid querying against SQL Server, PostgreSQL, MySQL, SQLite, Oracle, and other data sources through LINQ or SQL, making it equally valuable for database administrators exploring schema relationships and for back-end engineers validating ORM logic. Its integrated debugger, autocomplete, and NuGet integration allow step-through inspection of complex lambda expressions, while the Dump method visualizes objects and anonymous types in real time; these features position the utility squarely in the Developer Tools / Database & IDE category. Version 9 introduced a cross-platform runtime powered by .NET 8, native ARM64 builds, dark-mode theming, and a command-line runner that lets scripts participate in CI pipelines, yet the publisher maintains three concurrent release branches—stable, beta, and a free edition—so organizations can adopt new IntelliSense refinements or Entity Framework Core providers at their own pace. Typical use cases range from ad-hoc data migrations and performance benchmarking to exploratory machine-learning notebooks and classroom demonstrations, all executed within a lightweight single executable that requires no administrative rights. LINQPad 9 is available for free on get.nero.com, with downloads provided via trusted Windows package sources such as winget, always delivering the latest version and supporting batch installation of multiple applications.
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