Why and How We Migrated from AngularJS to VueJS

Description and use

Migrating from AngularJS to Vue.js improved performance, reduced bundle size, and made the codebase easier to maintain.

Problem

The legacy AngularJS application was difficult to maintain, had performance issues, and lacked modern tooling.

Outcome

The migration reduced bundle size by ~30%, improved page load times, and enabled a more modular codebase that is easier to test and extend.

Workflow

• 1. Conducted a technical audit of the AngularJS codebase.
• 2. Identified reusable components and services for migration.
• 3. Set up a new Vue.js project with Vite and TypeScript.
• 4. Migrated components incrementally, replacing $scope with reactive data.
• 5. Refactored custom directives into Vue composables.
• 6. Integrated Vue Router and Pinia for state management.
• 7. Replaced AngularJS services with Axios-based API clients.
• 8. Updated build pipeline to use Vite and modern CSS tooling.
• 9. Performed regression testing and performance benchmarking.
• 10. Deployed the new Vue.js app and phased out AngularJS code.

Evidence

We migrated incrementally, component by component, to avoid breaking the entire application at once.

Source

The new Vue.js app achieved faster load times and a more maintainable codebase.

Source