@kszongic/xor-cli

XOR encrypt/decrypt strings and files from the command line. Zero dependencies.

Install

npm install -g @kszongic/xor-cli

Usage

# XOR a string
xor-cli mykey "hello world"

# XOR a file
xor-cli mykey -f secret.txt -o secret.enc

# Decrypt (XOR is symmetric)
xor-cli mykey -f secret.enc -o secret.txt

# Hex mode
xor-cli --hex 4a6f "hello"

# Pipe from stdin
echo "hello" | xor-cli mykey

# Show help
xor-cli --help

How It Works

XOR cipher applies each byte of the key cyclically against the input. It's symmetric — encrypt and decrypt use the same operation. Useful for quick obfuscation, CTF challenges, and binary manipulation.

License

MIT © 2026 kszongic