John the Ripper

sudo apt install john

# Auto-detect hash
john hash.txt

# Specific format
john --format=raw-md5 hash.txt

# With wordlist
john --wordlist=rockyou.txt hash.txt

# Show cracked
john --show hash.txt

# Format examples
john --format=bcrypt hash.txt
john --format=raw-sha256 hash.txt

# List supported formats
john --list=formats

# Rules
john --wordlist=rockyou.txt --rules hash.txt

# Single crack mode
john --single hash.txt