Best self-hosted file transfer & synchronization
[File transfer](https://en.wikipedia.org/wiki/File_transfer), [sharing](https://en.wikipedia.org/wiki/File_sharing) and [synchronization software](https://en.wikipedia.org/wiki/File_synchronization) software.
We track 20 self-hosted file transfer & synchronization projects. The median health score in this category is 71, against 7 projects rated healthy or better and none currently flagged as at risk. The table below is ordered by health score, not popularity — the most starred project in a category is frequently not the best maintained one.
| # | Project | Health | Activity | Stars | Built with | Last release |
|---|---|---|---|---|---|---|
| 1 | Nextcloud Access and share your files, calendars, contacts, mail and more from any device, on your terms. | Thriving · 98 | 37k | PHP, deb | 24 Sept 2026 | |
| 2 | Puter Web-based operating system designed to be feature-rich, exceptionally fast, and highly extensible. | Thriving · 92 | 44k | Nodejs, Docker | 20 Sept 2026 | |
| 3 | OpenCloud File Sharing and Collaboration Platform. | Thriving · 89 | 6.1k | Docker, Go | 16 Sept 2026 | |
| 4 | ownCloud All-in-one solution for saving, synchronizing, viewing, editing and sharing files, calendars, address books and more. | Healthy · 77 | 8.8k | PHP, Docker | 25 Sept 2026 | |
| 5 | Sync-in File storage, syncing, sharing, and collaboration with real-time editing, permission management, and desktop/CLI clients | Healthy · 75 | 1.8k | Nodejs, Docker | 21 Sept 2026 | |
| 6 | Syncthing Syncthing is an open source peer-to-peer file synchronisation tool. | Healthy · 71 | 89k | Go, Docker | 22 Sept 2026 | |
| 7 | Cloudreve File management and sharing system, supports multiple storage providers. | Healthy · 71 | 29k | Docker, Go | 18 Sept 2026 | |
| 8 | Peergos Secure and private space online where you can store, share and view your photos, videos, music and documents. Also inclu | Steady · 67 | 2.5k | Java | — | |
| 9 | Kinto Minimalist JSON storage service with synchronisation and sharing abilities. | Steady · 65 | 4.4k | Python | 10 Aug 2026 | |
| 10 | Pydio Turn any web server into a powerful file management system and an alternative to mainstream cloud storage providers. | Steady · 63 | 2.3k | Go | 23 Sept 2026 | |
| 11 | bewCloud File sharing + sync, notes, and photos (alternative to Nextcloud and ownCloud's RSS reader). | Steady · 58 | 1.2k | Docker | 13 Aug 2026 | |
| 12 | Hoodik End-to-end encrypted cloud storage server. Files are encrypted and decrypted in the browser, so the server only ever hol | Steady · 52 | 1.5k | Docker | 22 Sept 2026 | |
| 13 | Unison Unison is a file-synchronization tool for OSX, Unix, and Windows. | Slowing · 48 | 5.5k | deb, OCaml | 1 May 2026 | |
| 14 | Seafile File hosting and sharing solution primary for teams and organizations. | Slowing · 40 | 15k | C | 27 Feb 2024 | |
| 15 | FileRun Complete solution for your files with integration with Google and Office. | Unrated | — | PHP | — | |
| 16 | Git Annex File synchronization between computers, servers, external drives. | Unrated | — | Haskell | — | |
| 17 | OpenSSH SFTP server Secure File Transfer Program. | Unrated | — | C, deb | — | |
| 18 | Resilio Sync Proprietary peer-to-peer file synchronisation tool. | Unrated | — | Unknown | — | |
| 19 | Samba Samba is the standard Windows interoperability suite of programs for Linux and Unix. It provides secure, stable and fast | Unrated | — | C | — | |
| 20 | Yetishare Powerful file hosting script with support for Amazon S3, Wasabi, Backblaze, local, direct and SFTP storage. | Unrated | — | PHP | — |
Which one should you run?
If you want the safest bet on longevity, Nextcloud is the best-maintained project in this category right now at 98/100. Puter is the closest runner-up (92/100) — see the side-by-side comparison.
A health score measures whether a project is alive and shipping. It does not measure whether it has the feature you need. Use it to rule options out, then compare on features.