20 self-hosted Microsoft OneDrive alternatives

Immich is an open-source platform for organizing, backing up, and streaming photos and videos with web and mobile clients, searchable metadata, face clustering, and S3-compatible storage.

109k stars6.4k forksAGPL-3.0last commit 27 Jul 2026Actively maintained

Open-source peer-to-peer file synchronization with TLS encryption, no central server, and a browser-based UI.

87k stars5.4k forksMPL-2.0last commit 27 Jul 2026Actively maintained

AList is a multi-storage file listing and sharing server with WebDAV access, file previews, protected routes, uploads, and cross-storage file operations.

49.9k stars7.9k forksAGPL-3.0last commit 10 Jul 2026Actively maintained

Copyparty is a portable file server with a web UI, accelerated resumable uploads, deduplication, indexing, and support for WebDAV, SFTP, FTP and more.

45.9k stars1.9k forksMITlast commit 27 Jul 2026Actively maintained

Self-hostable internet OS that provides a web desktop, cloud storage, and an app platform for files, web apps, and remote-work style workflows.

42.9k stars4k forksAGPL-3.0last commit 28 Jul 2026Actively maintained

Nextcloud is an open-source content collaboration platform providing file sync & share, groupware (calendar, contacts, mail), real-time office editing, chat and video conferencing.

36.3k stars5.1k forksAGPL-3.0last commit 28 Jul 2026Actively maintained

Cloudreve is a self-hosted file management and sharing platform with multi-user access, WebDAV, share links, and support for local and S3-compatible storage backends.

28.4k stars3.9k forksGPL-3.0last commit 15 Jul 2026Actively maintained

Self-hosted file sync and share platform with libraries, sharing links, versioning, and optional end-to-end encrypted libraries for private team collaboration.

15k stars1.7k forkslast commit 21 Jul 2026Actively maintained

Self-hosted Dropbox-like web file manager that connects to SFTP, S3, WebDAV, SMB/NFS, Git and more, with sharing links, plugins, and SSO integration.

14.4k stars1k forksAGPL-3.0last commit 27 Jul 2026Actively maintained

Open-source platform for secure file sync, sharing, collaboration, calendars and external storage with WebDAV/CalDAV/CardDAV support.

8.8k stars2.1k forksAGPL-3.0last commit 28 Jul 2026Actively maintained

Self-hosted web file browser to manage files, users, access control, sharing links, previews, and fast indexed search with real-time UI updates.

7.5k stars395 forksApache-2.0last commit 18 Jul 2026Actively maintained

OpenCloud is an open source platform for file management, secure sharing, sync, and team collaboration with modern authentication and access controls.

5.7k stars225 forksApache-2.0last commit 27 Jul 2026Actively maintained

Unison is a cross-platform, bidirectional file synchronization tool that keeps two directory replicas in sync over SSH or TCP, with conflict detection and offline support.

5.4k stars272 forksGPL-3.0last commit 23 Jul 2026Actively maintained

Minimalistic document management and archiving platform for long-term storage, full-text search, tagging, and automated ingestion via email or folders.

5.1k stars259 forksAGPL-3.0last commit 26 Jul 2026Actively maintained

Open source Google Drive-like cloud storage with uploads, sharing, media gallery, and optional AES-256 encryption, backed by MongoDB and pluggable storage.

4.2k stars484 forksGPL-3.0last commit 9 Mar 2025Slowing down

Open-source PicoShare lets users upload and share files of any type and size via direct download links, preserving originals and offering easy deployment via Docker or from source.

3k stars209 forkslast commit 14 Jul 2026Actively maintained

Prebuilt Nextcloud appliance and management tools for Raspberry Pi, Odroid, VMs and LXC; includes Apache, PHP, MariaDB, Redis, web panel and backup utilities.

2.9k stars320 forkslast commit 29 Jun 2026Actively maintained

Chibisafe is a fast, self-hosted file uploader and vault for files, photos, and documents with shareable links, albums, tagging, and API access.

2.7k stars298 forksMITlast commit 27 May 2026Actively maintained

Peergos is a peer-to-peer encrypted file storage and private social platform with fine-grained access control, capability links, and a web UI for secure sharing.

2.4k stars190 forksAGPL-3.0last commit 24 Jul 2026Actively maintained

Palmr. is an open-source file-sharing platform for uploading, organizing, and securely sharing files with custom links, passwords, and access control.

2.4k stars104 forksApache-2.0last commit 27 Feb 2026Actively maintained