To encrypt with OpenSSL:
echo "your_text" | openssl enc -aes-256-cbc -salt -pbkdf2 -base64 -pass pass:your_password
To decrypt with OpenSSL:
echo "U2FsdGVkX1..." | openssl enc -aes-256-cbc -d -salt -pbkdf2 -base64 -pass pass:your_password