Refactoring Bolt.new Code for Production

Bolt crams most logic into a few large files with no separation of concerns. Components mix UI rendering, data fetching, business logic, and side effects. File naming is often generic (App.tsx, Main.tsx, Component.tsx). There's typically no shared component library — each page re-implements common patterns

Create a clear directory structure: components/ for UI, lib/ for utilities, hooks/ for shared logic, and api/ or services/ for data fetching. Extract reusable components from duplicated patterns. Separate data fetching from presentation. Establish naming conventions and apply them consistently

Not all Bolt.new code needs refactoring. If it works, is secure, and you don't need to modify it, leave it alone. Refactor when: you need to add features and the current structure makes it difficult, bugs keep appearing in the same area of code, or onboarding new developers takes too long because the code is hard to understand.

The golden rule of refactoring: behavior stays the same, structure changes. Before refactoring any code, make sure you have tests covering the current behavior (or add them first). Refactor in small steps — change one thing at a time and verify the app still works. Use version control (git) to commit after each successful change so you can revert if something breaks.

A well-organized project has a predictable structure where anyone can find what they're looking for. Group files by feature (not by type), keep related code together, and use clear naming. Every file should have a single clear purpose. If you can't describe what a file does in one sentence, it's probably doing too much and should be split.