Open Source Cloud Storage Services

On-premises file sync, universal access, integrated collaboration, real-time communication with privacy and data control focus.

Cryptomator provides transparent, client-side encryption for your cloud. Protect your documents from unauthorized access. Cryptomator is free and open source software, so you can rest assured there are no backdoors.

Open-source, end-to-end encrypted backup and sharing for photos and videos, with multi-platform sync, original quality, privacy controls, and collaborative albums.

Filen is a cutting-edge cloud storage provider that offers client-side, end-to-end, zero-knowledge encryption. Headquartered and operated entirely in Germany, Filen is at the forefront of combining comprehensive features with uncompromising privacy and security.

Emphasizes privacy with end-to-end encryption, Proton Drive safely stores, synchronizes, and shares files across devices via web and mobile applications.

Self-hosted platform for secure file sync, sharing, calendar, and contact management with desktop, mobile, web access, and multi-device syncing.

YunoHost is a Debian GNU/Linux based distribution packaged with free software that automates the installation of a personal web server. The purpose of YunoHost is to allow users to easily host their own web services by enabling a simple point-and-click web interface for...

PixelUnion is a privacy-focused, EU-based photo storage service alternative to Google Photos. It offers lossless uploads, free 16 GB starter storage, AI-powered face recognition, and more.

A libre FTP, SFTP, WebDAV, S3, Backblaze B2, Azure & OpenStack Swift browser.

Cryptee is a safety and privacy focused, encrypted and cross-platform personal data storage service. You can write personal documents, notes, journals, store photos (including raw photos from DSLR cameras) and all sorts of other files.

Koofr is a safe, secure and simple way to store, backup and share your documents, photos, videos and more. It offers up to 10 GB of free safe storage for your files with affordable upgrades and options to connect multiple cloud accounts.

Seafile is an open-source file management and collaboration platform that goes beyond sync and share, offering extensible metadata, multi-level tagging, flexible file views, and AI-powered organization for smarter teamwork.

Choose simplicity, get Cozy. We all have a life and a digital life. Cozy gathers them. In your Cozy, you have all your personal data: pictures, health, bank, holidays, accessible only by you. Welcome to your new digital home.

Hoodik is a lightweight, secure, and self-hosted cloud storage solution. It's designed and built with Rust and Vue, focusing on end-to-end encryption that shields your data from prying eyes and hackers.

kDrive is a Swiss online storage service that respects its users' privacy and makes storing, sharing & collaborating on files a breeze.

CasaOS is an open-source Home Cloud system based on the Docker ecosystem and designed for home scenarios. It is committed to building the world's most simple, easy-to-use, and elegant Home Cloud system.

Sandstorm makes it easy to run your own server. Install apps to create documents, spreadsheets, blogs, Git repos, task lists & more as easily as you'd install apps on your phone.

Lightweight file storage app with a Rust backend, optimized binary, responsive UI, simple setup, desktop and mobile support, and multilingual interfaces.

Sync-in is a secure, open-source platform for file storage, synchronization, and team collaboration — designed to give organizations full control over their data and workflows, while remaining flexible enough for individual needs.

Pydio is the mature alternative to Dropbox and Box.com, to build your own box, on your own servers.

A Dropbox-like file manager that let you manage your data anywhere it is located: FTP, SFTP, WebDAV, Git, S3, Minio, Dropbox, Google Drive.

Puter is a privacy-first personal cloud that houses all your files, apps, and games in one private and secure place, accessible from anywhere at any time.

An open-source alternative to Google Drive, offering secure, self-hosted cloud storage with full control over your data, enhanced privacy, and enterprise-grade collaboration features.

Secure open-source backend server for web and mobile developers. Appwrite provides developers with a set of easy-to-use and integrate REST APIs to manage their core backend needs.

Stingle Photos is a secure photo/video encryption and backup application that provides strong security, privacy, encryption and safely saves your media on cloud storage keeping you safe from data breaches and leaks.