Fedora vs Kali Linux: What are the differences?

Fedora: Operating system based on the Linux kernel, developed by the community-supported Fedora Project. Fedora is a Linux-based operating system that provides users with access to the latest free and open source software, in a stable, secure and easy to manage form. Fedora is the largest of many free software creations of the Fedora Project. Because of its predominance, the word "Fedora" is often used interchangeably to mean both the Fedora Project and the Fedora operating system; Kali Linux: Penetration Testing and Ethical Hacking Linux Distribution. It is a Debian-based Linux distribution aimed at advanced Penetration Testing and Security Auditing. It contains several hundred tools which are geared towards various information security tasks, such as Penetration Testing, Security research, Computer Forensics and Reverse Engineering.

Fedora and Kali Linux can be primarily classified as "Operating Systems" tools.