Duplicati is a free and open-source backup solution that enables users to securely store encrypted backups online across various operating systems including Windows, macOS, and Linux. It supports standard protocols such as FTP, SSH, and WebDAV, and integrates seamlessly with popular cloud services like Backblaze B2, Tardigrade, Microsoft OneDrive, Amazon S3, Google Drive, box.com, Mega, and hubiC among others. With robust AES-256 encryption, users can ensure their files and folders are well protected. Duplicati also optimizes storage with features like incremental backups and data deduplication. You can manage backups effortlessly through its web-based interface or command-line interface, and it includes a built-in scheduler and auto-updater for convenience. This versatile software is available for free, even for commercial use, and its source code is licensed under LGPL. Duplicati operates on Windows, Linux, and macOS systems, requiring .NET 4.5 or Mono to function. In addition to AES-256, users have the option to utilize GPG for added backup encryption. Designed specifically for online backups, Duplicati stands out as a comprehensive solution for safeguarding your data. Its user-friendly nature and extensive compatibility make it a reliable choice for individuals and businesses alike.