Why and How We Migrated from AngularJS to VueJS

Description and use

Migrating from AngularJS to VueJS reduced bundle size by 30 % and improved page load times, while enabling the team to adopt a modern component‑based architecture.

Problem

The legacy AngularJS application was difficult to maintain, had performance issues, and required a modern framework to support new features.

Outcome

The migration reduced bundle size by 30%, improved page load times, and lowered the maintenance burden by allowing developers to use modern JavaScript features and a component‑based architecture.

Workflow

• 1. Conducted a technical audit of the existing AngularJS codebase.
• 2. Created a migration plan that prioritized core features for incremental migration.
• 3. Set up a shared build environment using Vue CLI and Webpack.
• 4. Mapped AngularJS components to Vue components and rewrote them one by one.
• 5. Integrated legacy services with Vue via a lightweight wrapper.
• 6. Performed unit and integration testing after each component migration.
• 7. Deployed the migrated parts incrementally to production.
• 8. Refactored remaining AngularJS code into Vue once the core was stable.

Evidence

We started with a technical audit of the existing AngularJS codebase to identify the most critical components for migration.

Source

The migration plan prioritized core features for incremental migration.

Source

We set up a shared build environment using Vue CLI and Webpack.

Source

After each component migration, we performed unit and integration testing to ensure stability.

Source

The migration reduced bundle size by 30% and improved page load times.

Source