Syncthing
File Sync & StorageContinuous peer-to-peer file synchronization
Replaces Dropbox, Resilio Sync
Dropbox is a widely used commercial cloud file storage and synchronization service. It offers file sharing, backup, and collaboration features for individuals and teams. These open-source apps let you replace Dropbox with software you host and control yourself.
Continuous peer-to-peer file synchronization
Replaces Dropbox, Resilio Sync
Portable file server with accelerated resumable uploads
Replaces Dropbox, Google Drive
Cross-platform file explorer powered by a virtual distributed filesystem
Replaces Google Drive, Dropbox
Self-hosted content collaboration and file sync platform
Replaces Dropbox, Google Drive
Reference implementation of the InterPlanetary File System
Replaces Dropbox
High-performance file sync and share with block storage
Replaces Dropbox, Google Drive
Web-based file manager and document gateway
Replaces Dropbox, SharePoint
Full-featured SFTP, FTP and WebDAV server
Replaces Dropbox
Distinctive utility file server with WebDAV support
Replaces Dropbox, Google Drive
Containerized turnkey Nextcloud deployment
Replaces Dropbox, Google Drive
Open-source file sync, share and content collaboration
Replaces Dropbox, Google Drive
Enhanced web file manager fork with extra features
Replaces Google Drive, Dropbox
Anonymous file sharing over the Tor network
Replaces WeTransfer, Dropbox
Global name system for secure file sharing
Replaces Dropbox
Modern open-source file platform from ownCloud team
Replaces Dropbox, Google Drive
Lightweight standalone WebDAV file server
Replaces Dropbox
Minimalistic self-hosted document archiving platform
Replaces Evernote, Dropbox
Bidirectional file synchronizer with conflict detection
Replaces Dropbox
Git-backed file synchronization with version history
Replaces Dropbox
Web file manager with a desktop-style interface
Replaces Google Drive, Dropbox
Official desktop sync client for Nextcloud
Replaces Dropbox, OneDrive
ShareX and file upload server with a clean dashboard
Replaces Imgur, Dropbox
Multi-user file manager with role-based access
Replaces Google Drive, Dropbox
Minimalist file sharing for permanent direct links
Replaces Dropbox, WeTransfer
Android client wrapper for continuous Syncthing file synchronization
Replaces Dropbox, Google Drive
Make a directory accessible over HTTP with uploads
Replaces Dropbox
Modern and self-hosted file uploader
Replaces Imgur, Dropbox
Document sharing and collaboration for organizations
Replaces Dropbox, Box
Go-based file sync and share server, successor to ownCloud PHP
Replaces Dropbox, Google Drive
Self-hosted client-oriented file sharing
Replaces Dropbox, WeTransfer
Manage and sync large files with Git without storing contents
Replaces Dropbox
Self-hosted WebDAV and CardDAV server in PHP
Replaces Dropbox
Folder comparison and synchronization tool with a GUI
Replaces Dropbox, rsync
Lightweight S3-compatible distributed object store
Replaces Amazon S3, Dropbox
Generic and extensible WebDAV server written in Python
Replaces Dropbox
Personal cloud storage with WebDAV access
Replaces Dropbox
Collaborative platform intended for team collaboration
Replaces Dropbox, Google Drive
Desktop synchronization client for Pydio Cells servers
Replaces Dropbox, OneDrive
Command-line sync client for Pydio Cells
Replaces Dropbox, Box
Lightweight web file manager for a directory
Replaces Dropbox
Official Android client for Syncthing sync
Replaces Dropbox, Google Photos
Encrypted file sync to arbitrary storage backends
Replaces Dropbox, SpiderOak
Modern web frontend for ownCloud file sharing
Replaces Dropbox, Google Drive
No apps match these filters.
Last reviewed Aug 26, 2026 · 509 words
Two computers on the same desk syncing a file through Dropbox send it to a data centre and back. Syncthing moves it across the room at LAN speed, with no account, no subscription, and no third party holding a copy. That is the clean version of this migration, and for a lot of people it is the whole migration. It only gets complicated when you also lean on Dropbox's share links and version history, which is what the server-shaped replacements below exist for.
Storage stops renting: Dropbox Plus runs about $120 a year for 2 TB at last check, roughly the one-time price of a 2 TB drive. Transfers between your own machines run at local network speed, and nothing indexes your files but you. Now the honest column. Dropbox was quietly an off-site backup, and a sync setup is not one - delete a file on one device and the deletion propagates everywhere within seconds - so budget for a real backup tool alongside. Version history also shrinks: Dropbox keeps around 30 days of versions on its basic paid plan, while Syncthing's file versioning is off until you enable it per folder.
Syncthing (87,991 stars, Go, 128 MB, Easy) wins for pure device-to-device sync: peer-to-peer, TLS-encrypted, no server anywhere. It deliberately has no web file browser and no share links. Nextcloud (36,583 stars, PHP) is the full platform - web UI, password-protected expiring share links, mobile and desktop clients, calendars and office documents - and the price is running a platform: MariaDB, Redis, and periodic tuning, though the official All-in-One image packages sane defaults for people who would rather not. Seafile (15,170 stars, C) sits between: a dedicated sync-and-share server whose block-level engine stays fast and reliable on libraries of hundreds of gigabytes, with fewer extras. File Browser (35,942 stars, a 64 MB single binary) covers the modest case of web access and share links for one server folder, no sync client involved.
There is no export format to fight: drag everything out of ~/Dropbox into the new synced folder, preferably over the LAN rather than re-downloading. What cannot come along: every existing share link dies, server-side version history stays behind, Paper documents need their own export, and third-party apps authorised against Dropbox disconnect. Two catalogue gotchas deserve repeating - never expose Syncthing's port 8384 GUI to the internet, since sync traffic uses 22000 anyway, and never leave Nextcloud on its SQLite default past a first test.
Most individuals should run Syncthing and stop - the Nextcloud vs Syncthing comparison makes the case that simpler wins. Choose Nextcloud when sharing with other humans is the actual job, Seafile when raw sync performance on a huge library is. Then stand up a backup, because none of these are one.