DiskCryptor is a free and open-source full disk encryption system. Developed by ntldr
License: Open Source
BitLocker is a full disk encryption feature included with Windows Vista and later. It is designed to protect data by providing encryption for entire volumes. By default, it uses the AES encryption algorithm in cipher block chaining (CBC) or XTS mode with a 128-bit or 256-bit key. Developed by Microsoft
License: Commercial
Windows BitLocker is built into Windows and offers a user-friendly experience with strong security features, making it ideal for Windows users. In contrast, DiskCryptor is an open-source alternative that provides advanced customization options and cross-platform support, suitable for more technical users.