Best Open-Source File Sync & Storage | open-source.storeAll categoriesFile Sync & Storage
Cloud storage, backups, and photo synchronization
33 tools found 
LocalSend
LocalSend is an open-source alternative to Apple AirDrop that transfers files and clipboard text securely across local networks without cloud accounts.
Apache-2.0Cloud Storage & Sync

Syncthing
Syncthing replaces commercial cloud sync tools like Dropbox with private, decentralized peer-to-peer file synchronization across your own devices.
90.0kLinuxmacOSWindowstoday MPL-2.0Cloud Storage & Sync

Spacedrive
Spacedrive replaces cloud storage silos by unifying local disks, offline drives, and cloud accounts with local-first indexing and peer-to-peer sync.
39.4kLinuxmacOSWindows3d ago AGPL-3.0Cloud Storage & Sync

Nextcloud
Nextcloud is an open-source Dropbox and Google Drive alternative that pairs private cloud file sync with integrated office editing and calendar apps.
37.4kLinuxmacOSWindowstoday AGPL-3.0Cloud Storage & Sync

Restic
Restic is an open-source CLI backup tool offering client-side encryption, content-defined deduplication, and support for any cloud storage backend.
37.0kLinuxmacOSWindows3d ago BSD-2-ClauseBackup Solutions

SeaweedFS
SeaweedFS is an open-source alternative to AWS S3 that handles billions of files with O(1) disk seeks, WebDAV drive mounts, and full S3 API support.
35.9kLinuxmacOSWindowstoday Apache-2.0Object Storage
Lint, codegen, breaking-change checks and dependency management in one Git-native CLI. Open source, no registry lock-in.
lintgeneratebreakingeasyp.lock

Ceph
Ceph provides self-hosted, S3-compatible object storage on private hardware, eliminating cloud vendor lock-in, per-request fees, and egress charges.
LGPL-2.1Object Storage

Seafile
Seafile is an open-source file sync and cloud storage system that replaces Dropbox with client-side encryption, virtual drives, and self-hosted control.
15.4kLinuxmacOSWindows18d ago GPL-2.0Cloud Storage & Sync

Duplicati
Duplicati replaces proprietary cloud backup services like Backblaze with an open-source client that encrypts and deduplicates files before upload.
15.2kLinuxmacOSWindows1d ago LGPL-2.1Backup Solutions

Kopia
Kopia replaces Backblaze with fast deduplication, client-side encryption, and BYO cloud storage across Linux, macOS, and Windows.
14.6kLinuxmacOSWindows2d ago Apache-2.0Backup Solutions

BorgBackup
Open-source deduplicating backup archiver replacing CrashPlan with client-side encrypted, space-efficient snapshots over SSH.
13.9kLinuxmacOSWindows1d ago BSD-3-ClauseBackup Solutions

PairDrop
Open-source cross-platform alternative to Apple AirDrop. Share files directly peer-to-peer in any web browser without accounts, apps, or cloud uploads.
GPL-3.0Cloud Storage & Sync
Windows
today
MPL-2.0Cloud Storage & Sync
Windows
today
Windows
3d ago
BSD-2-ClauseBackup Solutions