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1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitchesFor most Angular projects, keep the Angular CLI build pipeline and customize it only when the project has a concrete need the built-in builders cannot meet. Start by checking the project’s build target in angular.json: it determines which builder ng build runs. Use a custom Architect builder to extend a CLI task; consider a separate toolchain such as Vite or Rspack only when an existing stack or dependency makes that trade-off worthwhile.
Choose the smallest change that meets the build need
Angular recommends the CLI for its build-system abstraction and structure-dependent update functionality. A custom pipeline is usually a niche choice: integrating Angular into another established toolchain, preserving a strong dependency on webpack-specific plugins, or running a deliberately short-lived experiment. Angular identifies Vite and Rspack integrations as community tools that require manual maintenance and do not have an automated update experience. Angular’s custom build pipeline guidance describes these trade-offs.
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| Situation | Starting point | What to check |
|---|---|---|
| Typical Angular application | Keep the CLI and @angular/build:application |
Output needs, SSR or prerendering, and configured size budgets. |
| Need a new CLI task or to adjust a target | Use or create an Architect builder | Builder schema, target configuration, and integration tests. |
| Existing webpack-based browser build | Plan a move to application or browser-esbuild |
Compatibility and migration issues; the webpack browser builder is deprecated. |
| Deep dependency on webpack plugins | Evaluate Angular’s Rspack integration | Plugin compatibility and who will handle manual maintenance. |
| Angular inside an existing Vite stack | Evaluate AnalogJS’s Angular Vite plugin | Integration requirements and ongoing maintenance. |
| Short-lived experiment | A separate custom pipeline may be reasonable | Keep its temporary scope and maintenance ownership explicit. |
Inspect the build target before changing it
The command ng build runs the configured build target for the selected project. That target names a builder and its options in the project’s architect section of angular.json. Projects can also define named configurations, such as environment-specific settings, and target defaults. The effective options can be overridden by a named configuration and command-line values. See Angular’s workspace configuration reference and ng build reference.
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New applications use the application builder by default. Generated libraries use Angular’s Package Format builder instead, so do not assume an application build choice applies to a library target. Angular’s build documentation lists the built-in builder choices:
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@angular/build:applicationbuilds application output, including a client bundle, a Node server, and build-time prerendered routes, using esbuild.@angular/build:browser-esbuildbuilds a client-side bundle using esbuild.@angular-devkit/build-angular:browserprovides webpack-based client bundling.@angular/build:ng-packagrbuilds Angular libraries.
For application builds, configure the builder through workspace settings or command options. Angular CLI also supports size budgets and browser compatibility handling through Browserslist; consult the build guide and ng build options before replacing the pipeline to solve a configuration problem.
Use an Architect builder to extend the CLI
Architect is Angular CLI’s extension point for tasks. A builder is a handler that performs a task for a configured target. It can implement a new task or change the third-party tool used by an existing command. The builder receives resolved options and a BuilderContext, and returns a BuilderOutput synchronously, as a promise, or as an observable for watch-style work. Its inputs are validated against a JSON schema. Angular explains the builder model in its CLI builders guide.
- Define the target. In the project’s
architectsection inangular.json, specify the builder and its options. Add named configurations or defaults when different invocations need different settings. - Implement and validate the builder. Define its option schema and return results using the documented
BuilderOutputshape. Use an observable when the task needs watch-style behavior. - Invoke the target. Use the relevant CLI command for its configured target, or run it explicitly as
ng run project:target[:configuration]. - Test the integration. Verify resolved options, expected outputs, configuration overrides, and behavior when the builder reports an unsuccessful result.
For the full target and builder setup, see Angular’s builder documentation and workspace configuration reference.
Choose among Angular’s application build options
Use the application builder for the broadest built-in application workflow
@angular/build:application is the default for new applications. It uses esbuild and supports client output as well as a Node server and build-time prerendered routes. It is the broader built-in option when server-side rendering (SSR) or prerendering is part of the project’s output needs. Review the build guide for its configuration.
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Use browser-esbuild as a narrower compatibility step
For an existing client-side application moving away from the webpack browser builder, browser-esbuild can be a lower-change step. Check the migration guidance and the project’s actual configuration and dependencies before choosing it; it is a client-bundle builder rather than the broader application output path. Angular discusses migration choices in its build-system migration guide.
Plan migration away from the deprecated webpack browser builder
Angular marks the webpack-based build system and browser builder deprecated and recommends migration. Do not start a new project on that builder merely to retain familiar configuration. For an existing project, assess compatibility issues and choose between the narrower browser-esbuild transition and the application builder’s broader output support. Angular’s migration guide documents the move and known considerations.
When a community toolchain makes sense
Rspack for webpack-coupled projects
Angular identifies its Rspack integration as a fit to evaluate when a project is tightly coupled to webpack plugins. That does not make it a built-in CLI default: check that required plugins and project behaviors work, and account for manual integration and update maintenance. See Angular’s custom pipeline guidance.
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AnalogJS’s Vite plugin is an option for projects already using Vite or adding Angular to an existing Vite stack. It is a community integration, so consider the additional ownership of its compatibility and maintenance rather than treating it as an automatic replacement for the Angular CLI. Angular’s overview of the option is in its custom pipeline guidance.
Do not choose by assumed speedup
There is no substantiated performance percentage here for comparing the CLI, esbuild, Vite, or Rspack. Select on output requirements, integration compatibility, migration effort, and who will maintain the toolchain—not an unverified speed claim.
Quick Recap
Decision checklist
- Identify the exact project and builder behind its
buildtarget. - Check whether configuration, budgets, or Browserslist already address the need.
- For a new CLI task or target adjustment, evaluate an Architect builder before replacing the pipeline.
- For a webpack browser build, plan migration and verify dependencies against the chosen Angular builder.
- Adopt a community integration only when the existing stack or dependency justifies its ongoing manual maintenance.
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