Developer Tooling
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Oct 12 2026
Labcoat: the web UI I was missing for my .NET tests in Aspire
I am a big fan of Aspire. It's the best way I know to give a project a proper onboarding experience, and it adds an extra layer of joy to building applications: everything that matters, in one view. On the frontend, that view includes my tests. Vitest UI gives me a web interface in which I bring my tests from red to green. On the backend I get dotnet test in a terminal, and while I feel at home there, watching my tests turn green is the one thing missing from my Aspire setup. So I built it: Labcoat, a web UI for tests on Microsoft.Testing.Platform that runs on its own or as a resource in your AppHost.
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May 7 2026
What's new in Aspire 13.3
Aspire 13.3 lands WithBrowserLogs — a tracked Chromium browser as a child resource, streaming console and network events into the same dashboard timeline as your backend traces, with first-party commands for opening it, configuring it, and capturing screenshots. More on the rest of 13.3 to follow in upcoming parts.