Open Source Backup & Sync Apps

Open source note-taking app with Markdown support, to-do integration, and synchronization with cloud services like Dropbox and OneDrive.

Open-source, decentralized alternative ensuring data ownership with encrypted communication and peer-to-peer sync, void of central server reliance.

Free, user-friendly disk cloning and imaging software, boots from USB for Windows, Mac, and Linux. Supports Clonezilla backups and virtual machine images.

Manage partitions with ease, supporting resizing, moving, and copying. Utilize GParted Live for cross-platform use on x86 machines.

A versatile client for SFTP, FTP, and other protocols for file transfer. It offers GUI choice, and supports automation and key authentication.

FreeFileSync is a folder comparison and synchronization software that creates and manages backup copies of all your important files. Instead of copying every file every time, FreeFileSync determines the differences between a source and a target folder and transfers only the...

Open-source, end-to-end encrypted backup and sharing for photos and videos, with multi-platform sync, original quality, privacy controls, and collaborative albums.

Filen is a cutting-edge cloud storage provider that offers client-side, end-to-end, zero-knowledge encryption. Headquartered and operated entirely in Germany, Filen is at the forefront of combining comprehensive features with uncompromising privacy and security.

Emphasizes privacy with end-to-end encryption, Proton Drive safely stores, synchronizes, and shares files across devices via web and mobile applications.

Open-source partition and disk imaging solution with multicast support, capable of cloning over 40 computers simultaneously. Offers free disaster recovery and deployment features.

Self-hosted platform for secure file sync, sharing, calendar, and contact management with desktop, mobile, web access, and multi-device syncing.

Command-line tool for syncing, copying, and checking files between local drives and over 40 cloud storage services with features like hashing, compression, and encryption.

Securely store encrypted, incremental, compressed backups on local, cloud, and remote servers. Runs on multiple OSes and offers command line interface.

Koofr is a safe, secure and simple way to store, backup and share your documents, photos, videos and more. It offers up to 10 GB of free safe storage for your files with affordable upgrades and options to connect multiple cloud accounts.

File and directory synchronization tool for Unix systems with delta encoding, compression, recursion, SSH support, permission preservation, and flexible filters.

Clipboard manager storing unlimited history, supporting formatted text, images, HTML, quick search, organization by type, previews, editing, and data grouping.

PixelUnion is a privacy-focused, EU-based photo storage service alternative to Google Photos. It offers lossless uploads, free 16 GB starter storage, AI-powered face recognition, and more.

Proxmox Virtual Environment is a complete and easy to use Open Source virtualization platform for running Virtual Appliances and Virtual Machines. Proxmox VE tightly integrates KVM hypervisor and LXC containers, software-defined storage and networking functionality on a single...

Creates incremental snapshots of Linux systems, protecting system files and settings while allowing full system restoration without impacting personal files.

TrueNAS (formerly FreeNAS) is an operating system that can be installed on virtually any hardware platform to share data over a network. TrueNAS is the simplest way to create a centralized and easily accessible place for your data.

kDrive is a Swiss online storage service that respects its users' privacy and makes storing, sharing & collaborating on files a breeze.

Seafile is an open-source file management and collaboration platform that goes beyond sync and share, offering extensible metadata, multi-level tagging, flexible file views, and AI-powered organization for smarter teamwork.

Enhanced file sync tool offering individual sync conditions, Android-focused UI, battery fixes, two-way external SD support, and secure encrypted folders.

Sync-in is a secure, open-source platform for file storage, synchronization, and team collaboration — designed to give organizations full control over their data and workflows, while remaining flexible enough for individual needs.

Upload your files remotely to different hosts.