World's fastest and most advanced password recovery utility

John the Ripper jumbo - advanced offline password cracker, which supports hundreds of hash and cipher types, and runs on many operating systems, CPUs, GPUs, and even some FPGAs

A novel data compression framework

Restore/upgrade firmware of iOS devices

Deflate disassember to convert a deflate, zlib, or gzip stream into a readable form.

Modify a message to have a desired CRC signature.

Crack legacy zip files using plaintext, bruteforce or dictionary attacks.