Nuxt/docs/7.migration/10.bundling.md

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---
title: Build Tooling
description: 'Learn how to migrate from Nuxt 2 to Nuxt 3 build tooling.'
---
We use the following build tools by default:
- [Vite](https://vitejs.dev) or [webpack](https://webpack.js.org)
- [Rollup](https://rollupjs.org)
- [PostCSS](https://postcss.org)
- [esbuild](https://esbuild.github.io)
For this reason, most of your previous `build` configuration in `nuxt.config` will now be ignored, including any custom babel configuration.
If you need to configure any of Nuxt's build tools, you can do so in your `nuxt.config`, using the new top-level `vite`, `webpack` and `postcss` keys.
In addition, Nuxt ships with TypeScript support.
:read-more{to="/docs/guide/concepts/typescript"}
## Steps
1. Remove `@nuxt/typescript-build` and `@nuxt/typescript-runtime` from your dependencies and modules.
2. Remove any unused babel dependencies from your project.
3. Remove any explicit core-js dependencies.
4. Migrate `require` to `import`.
<!-- TODO: Enabling webpack builder -->