Best Open Source Cloud Storage in 2026
Services and platforms for storing, syncing, and sharing files securely across devices and teams.
The most popular pick this year is Syncthing with 83,894 GitHub stars, but all 10 options below are worth considering depending on your needs.
10 open source cloud storage — ranked by GitHub stars. Browse all
Syncthing
Continuous file synchronization program that syncs files directly between your devices — no cloud required.
Dropbox
PhotoPrism
AI-powered self-hosted photo app for browsing, organizing, and sharing your photo collection.
Google Photos
Nextcloud
The most popular self-hosted cloud platform for file storage, collaboration, and communication.
Google Drive
Seafile
High-performance open-source file sync and share platform for teams.
Google Drive
ownCloud
Pioneer open-source file sync and sharing platform that spawned the self-hosted cloud movement.
Google Drive
OpenCloud
Open source platform for file management, sharing, and collaboration — simple and self-hostable.
Google Drive
Lychee
Beautiful self-hosted photo management tool with a stunning web interface.
Google Photos
Piwigo
Open-source photo gallery and management software for individuals and teams.
Google Photos
Twake Drive
The open-source alternative to Google Drive.
Google Drive
BluFiles
Self-hosted file sharing and management platform with file transfers, pastes, collections, and a REST API.
WeTransferHow we rank these tools
Tools are ranked by GitHub stars as a proxy for community adoption and trust. Stars reflect how many developers found a project valuable enough to bookmark — a reasonable signal for quality in the open source world. We only list tools that are actively maintained and open source.
Looking for tools you can run yourself? Browse self-hosted cloud storage →