CodeIgniter vs ASP.NET Core

Setting up CodeIgniter is quick and easy. You can download the version you want from the CI homepage or directly pull the latest version from GitHub. After that, you unzip the contents to the directory that's required. The final step is to edit the config.php to suit your needs and it's set up and ready for development.

There are also a lot of guides and tutorials from developers who have been using CI for a long time. This is because of the relative old age of the framework and the large community behind it.

CodeIgniter has a small footprint, just 3MB and that's including the user guide.

The documentation is clear, structured and thorough. It explains both commonly used and CodeIgniter specific concepts and always with clear examples.

Because it's relatively old and well-liked, it has an active community of developers behind it. It's used by a lot of websites in production.

The MIT License (MIT)

CodeIgniter is open source and is distributed under the MIT license.

CodeIgniter is tested by hundreds of thousand of developers that use it in production. This means that it's very hard for any bugs or problems to go unnoticed. Even when a new version is out, bugs are quickly found and patched up.

CodeIgniter has it's own templating engine built-in. It's based on a mustache-like templating language which is easy to learn for new developers who have never seen it. While experienced developers will feel very comfortable using it.

CodeIgniter lets you cache the web pages in order to decrease loading times and increase efficiency and performance.

CI4 will be out soon & is a rewrite..
"CodeIgniter 4 is a rewrite of the framework and is not backwards compatible."
So it will support ALOT more newer functionality built-in.

Thanks to breakthroughs in ROSLYN compiler and the efforts of the .NET COre developer team, code written in C# can reach speeds just a step behind C++.

Can run on Windows, Linux and Mac (also Visual Studio Code editor).

In .NET Core 2.1 and 3.0, new APIs are added that make it possible to write JSON APIs that require less memory, using Span<T> and UTF8 strings, and improve throughput of applications like Kestrel, ASP.NET Core web server. See also Utf8JsonReader.

Both microsoft and 3rd party tutorials are mostly of high quality and encourage you to use the industry best-practices.

Built-in middleware featuring: Authentication, Cookie policy, Health Check, MVC, Session etc.

Ability to host on IIS, Nginx, Apache, Docker, or self-host in your own process.

It is a very secure platform.

Both VS and VSCode are powerful free IDEs that are well integrated with ASP.net Core. VS Community also allows for commercial use for projects with less than 5 developers.