Codeigniter is a toolset for creating web-based applications in the PHP programming language. The following are the benefits provided by CodeIgniter: 1. Codeigniter is a PHP framework that is open source. 2. Codeigniter is compact in comparison to other frameworks. The Codeigniter framework is only approximately 2 MB after installation. 3. Codeigniter-created applications may run quickly. 4. Codeigniter employs the Model-View-Controller (MVC) design pattern to keep code in a single file to a minimum. This makes the code easier to read, comprehend, and maintain in the future. 5. Codeigniter has the ability to be extended as needed. 6. Codeigniter The documentation supplied in the distribution package contains well-documented information on libraries and functions provided by CodeIgniter. 7. Codeigniter has a comprehensive library and helper. 8. Codeigniter provides dependable security features such as XSS filtering, session encryption, and others. 9. Codeigniter enables web developers to utilize libraries or helpers that are not supplied by CodeIgniter, such as Google Maps API, Facebook API, pdf, and others. 10. Codeigniter is adaptable. As a result, web developers will be able to create web-based apps even without the use of a framework. 11. Codeigniter has a big community that is dispersed all around the world, making it easier for web developers to address difficulties when creating web-based apps. 12. Codeigniter supports a wide range of RDBMS (Relational Database Management Systems), including MySQL, SQL Server, Oracle, Maria DB, PostgreSQL, SQLite, and others. 13. Codeigniter essentially supports SEO and encourages Clean URLs (Search Engine Optimization). As a result, the application developed using Codeigniter is simpler for prominent search engines like Google, Yahoo, MSN, and others to index. https://www.phptpoint.com/codeigniter-tutorial