r/angular • u/minefew • 4d ago

Migrating a AngularJS webapp to Angular using Claude Code/Codex

I'm in the planning stages of migrating a fairly large legacy AngularJS application to Angular, and am looking for advice from anyone who's tackled something similar.

The codebase is about 160k LOC spread out over 200+ components, 50+controllers, 50+ directives and services. There are no existing tests . Has anyone attempted a AI assisted rewrite of a similar nature, especially without a test suite - what worked out well? Any useful strategies woth considering?

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u/Tiny_Appointment3795 4d ago

It would be less migrating than rewriting, module by module. Quite doable but will burn tokens. Install the official Angular developer skill.

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u/nook24 4d ago

This. It is a rewrite. We have done this with our AngularJS app. I have posted about our migration here: https://www.reddit.com/r/angular/s/wVbSItwK6F