Milanote, Encrypted Notepad, Notebook PEA, Crypto Notepad, Sec Notes, Locknote, CryptoTE, Google Keep Notes, Paranoia Text Encryption, fSekrit, DocWallet, DCrypt, CTI Text Encryption, Standalone EXE Document Locker, PryNotes, ImmediateCrypt, TheLetterEncrypter, CryptNote are some alternatives to NPPCrypt.