john

John the Ripper Jumbo is a powerful offline password cracking tool that can recover passwords from a wide variety of hash and cipher formats. It runs on many operating systems and leverages CPUs, GPUs, and even some FPGAs for high‑performance cracking. The project is open‑source and continuously updated with new algorithms, making it a go‑to solution for security researchers, penetration testers, and system administrators who need to audit password strength.