---
title: "How to Migrate from ASP.NET Framework to ASP.NET Core"
url: https://daily.dev/posts/how-to-migrate-from-asp-net-framework-to-asp-net-core-e22ntd3va
source_url: https://www.freecodecamp.org/news/migrate-from-asp-net-to-asp-net-core
type: article
source: "freeCodeCamp"
published: 2026-05-20T06:50:14.092Z
updated: 2026-05-20T06:50:48.614Z
tags: [".net", "aspnet", "dependency-injection"]
reading_time: 12
upvotes: 4
comments: 0
language: en
---

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# How to Migrate from ASP.NET Framework to ASP.NET Core

**[freeCodeCamp](https://daily.dev/sources/freecodecamp)** · 12 min read · 4 upvotes · 0 comments

## Summary

A comprehensive guide to migrating legacy ASP.NET Framework applications to ASP.NET Core MVC. Covers the fundamental architectural differences (modular middleware, built-in DI, JSON configuration), three migration strategies (Big Bang, Incremental/Strangler Fig, Hybrid), and a nine-step migration process including configuration, controllers, dependency injection, data access, authentication, and testing. Also addresses common pitfalls, real-world use cases, deployment modernization with Docker and CI/CD, and when migration may not be the right choice.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://www.freecodecamp.org/news/migrate-from-asp-net-to-asp-net-core>

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---

Tags: [#.net](https://daily.dev/tags/.net), [#aspnet](https://daily.dev/tags/aspnet), [#dependency-injection](https://daily.dev/tags/dependency-injection)

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