ARUI DevTools: Chrome DevTools panel for ARUI microfrontend debugging
ARUI DevTools, developed by Alfa-Bank (Alfa Digital/Alfa-Laboratory team), is a Chrome extension for frontend developers building microfrontends with the ARUI library. It adds a dedicated DevTools tab to show how modules are fetched, versioned, and executed, offering timeline and resource-timing views plus persistent logs. The extension targets engineers working inside the ARUI/arui-scripts ecosystem who need visibility into distributed module loading and startup sequencing.
What is ARUI DevTools used for?
The tool focuses on microfrontend diagnostics for ARUI-based projects. It integrates a new DevTools tab that surfaces module manifests, sources, and loaded versions, so developers can inspect which module instance the app used at runtime. That specificity makes the extension suited to teams that rely on the ARUI component library and arui-scripts rather than generic network inspection panels.
How does it handle module and error visibility?
It maps module failures to actionable stack traces inside DevTools. The Errors section captures the failure stage and provides clickable stack frames that open files in the browser Sources panel, which lets engineers jump from an error row to the corresponding source file without switching tools. The Modules table lists source manifests and versions to tie an error to a specific bundle.
How well does it record load timing and persist data?
It records parallel loading and keeps records across reloads for early-boot analysis. Timeline visualization highlights concurrent resource requests and queuing bottlenecks while a resource-timing breakdown shows load stage pauses. Persistence of timeline and loading data through page refreshes helps catch issues that occur before traditional panels can capture them.
Who should install it and why
ARUI DevTools is a niche, practical option for frontend engineers embedded in the ARUI microfrontend stack who need end-to-end visibility of module resolution and startup sequencing. Expect a focused extension that shortens the path from a failing load to the responsible module and source file. For developers outside the ARUI ecosystem, the extension offers little added value compared with standard DevTools panels.
