Open-source alternatives to Seafile

This project is a community-curated directory of open-source software designed for deployment in private server environments and home labs. It serves as a comprehensive resource for discovering independent, self-hosted alternatives to mainstream cloud services, enabling users to maintain full data ownership and control over their digital infrastructure. The directory is structured through a hierarchical taxonomy that organizes a vast collection of applications into logical categories, ranging from media management and data analytics to private communication and team productivity tools. It dis

OpenCloud is a self-hosted platform for synchronizing files across devices and sharing them with team members through collaborative spaces and access controls. It enables users to sync files between a server and local desktop and mobile clients, manage files and folders, and share content with internal and external contributors via permission-based links and file drops. The platform integrates an embedded OpenID Connect identity provider for authentication and supports external identity providers. It stores all data and metadata directly on the filesystem, eliminating the need for a separate

Pingvin Share is a self-hosted file sharing platform designed for uploading and distributing files via secure links. It provides a private alternative to third-party cloud services for managing file transfers. The platform integrates an external security engine to scan uploaded files for malware and threats before they become available. It supports identity management through OpenID Connect integration, allowing user authentication to be delegated to external identity providers. Storage is managed through a gateway that supports both local disk drives and S3-compatible cloud object storage.

Transfer.sh is a self-hosted file storage server designed for rapid data sharing through a command-line interface. It functions as an encrypted hosting platform that allows users to upload and download files using standard HTTP requests, facilitating direct data transfer between systems without the need for external accounts or complex configurations. The service distinguishes itself by processing data as continuous streams, which minimizes memory usage during large transfers. It provides granular control over file availability through automated lifecycle management, allowing administrators t

Future-proof content collaboration platform

Filestash is a unified storage management platform that provides a web-based interface for browsing, managing, and accessing files across diverse local and cloud storage backends. It functions as a centralized gateway, aggregating services such as S3, SFTP, WebDAV, and FTP into a single, consistent environment for remote filesystem administration and secure document handling. The platform distinguishes itself through a modular, plugin-based architecture that supports custom storage drivers, authentication providers, and authorization logic. It includes built-in capabilities for server-side me

TagSpaces is an offline-first file tagging and organization platform that lets you manage local files with portable metadata stored directly in filenames or sidecar JSON files, eliminating the need for a central database. It functions as a full-text file search engine, a Kanban board file organizer, a local AI file assistant, an S3-compatible cloud file manager, and a web clipper and bookmark manager, all within a single application. The project distinguishes itself through a local-first architecture where all file operations, indexing, and AI processing run entirely on the device, with cloud

Remotely Save is a cloud storage synchronization tool and backup manager designed to keep local files and application data consistent across desktop and mobile devices. It functions as a cross-platform synchronizer that mirrors local data to remote servers using S3 and other cloud protocols. The project focuses on privacy and security through end-to-end encryption, which secures files with a user-defined password before they are uploaded to remote cloud services. It ensures data remains private on third-party servers by applying symmetric client-side encryption. The system includes capabilit

all-in-one is a containerized deployment system designed to install and manage a complete suite of productivity and collaboration services. It functions as a cloud suite deployer that orchestrates the installation of a self-hosted content platform, incorporating necessary dependencies via Docker or Kubernetes. The project distinguishes itself by providing a web-based dashboard for orchestrating, updating, and monitoring the lifecycle of service containers. It also serves as a local AI inference server, enabling the execution of generative text models, image diffusion, and speech processing on

CryptPad is a self-hosted, zero-knowledge office suite designed for real-time collaborative editing and content management. It provides a privacy-centric infrastructure where documents, files, and notes are encrypted in the browser before transmission, ensuring that the server administrator cannot access the underlying data. The platform implements zero-knowledge user authentication, utilizing cryptographic keys to verify identities so that plain text passwords are never stored on the server. To further isolate sensitive operations, the system employs a security architecture that separates th

Filegator is a web-based file manager and self-hosted file sharing portal. It functions as a cloud storage gateway that allows users to organize, upload, and download files across local disks and various cloud storage providers through a single unified interface. The system features a multi-backend authentication provider capable of verifying identities via JSON files, databases, or external directory services. It includes a role-based access control system that manages user permissions, assigns home folders, and restricts access to specific files and system routes. The platform provides cap

MinIO is a software-defined, cloud-native object storage server designed to manage large volumes of unstructured data. It functions as a distributed storage cluster that aggregates multiple independent nodes into a unified, scalable pool, providing a high-performance infrastructure compatible with standard cloud storage protocols and application programming interfaces. The system utilizes a shared-nothing architecture that eliminates central metadata servers, relying instead on a decentralized hash table to map objects across the cluster. Data availability and resilience are maintained throug

Unison is a bidirectional file synchronization tool that keeps two copies of a directory identical by automatically propagating changes in both directions. It operates over an encrypted SSH transport layer, allowing secure synchronization between different hosts and operating systems without a central server. The tool uses a bidirectional reconciliation engine to compare replicas and compute a minimal set of actions for agreement, handling both automatic merging of non-conflicting changes and clear reporting of conflicts that require manual resolution. Unison optimizes transfers by sending on

File Browser is a self-hosted application that provides a web-based interface for managing files and directories on a server. It functions as a virtual file system abstraction, allowing users to browse, organize, and edit text-based files directly within their browser without requiring local access to the server. The platform distinguishes itself through a comprehensive command-line interface that enables full administrative control over system configurations, user accounts, and automation hooks. It supports a flexible, event-driven architecture where custom shell scripts can be triggered aut

Cryptomator is a client-side cloud encryption tool and cross-platform vault manager. It provides a transparent encryption layer that encrypts files and folder structures locally before they are uploaded to a cloud storage provider. The software creates virtual encrypted drives that mount encrypted vaults, allowing users to interact with their data as if it were on a physical disk. It supports the management of multiple independent encrypted containers, each protected by a unique password. The project covers data privacy through directory structure obfuscation and filename encryption to hide

Yopass is a secure secret sharing platform used to share encrypted text and files via one-time expiring links. It utilizes client-side encryption to ensure that sensitive data is encrypted in the browser before transmission, preventing the server from seeing plain text. The platform differentiates itself through an integrated security auditing system that generates structured logs and triggers cryptographically signed webhooks when secrets are created, viewed, or expired. It also features an access control system based on OpenID Connect, allowing administrators to restrict secret creation and

The application functions as a self-hosted file sharing platform that allows users to transfer files directly through the browser or via cloud storage. It provides decentralized file-sharing utilities that stream encrypted data between client browsers without intermediate storage servers, alongside mechanisms for managing object storage providers and local disk configurations. The system incorporates client-side encryption to secure file payloads within the browser prior to transmission, paired with fallback relay routing to bypass restrictive firewalls through secondary TURN servers when dir

dzzoffice is an enterprise collaboration platform and digital workplace automation suite. It functions as a collaborative document management system and a cloud storage gateway, providing a centralized hub for team communication, task tracking, and corporate directory services. The platform is distinguished by its ability to mount multiple external cloud storage providers and private drives into a single unified interface for file management. It supports real-time co-authoring and previewing of office documents through integration with external office servers and maintains a structured intern

This project is a reactive, offline-first NoSQL database engine designed for JavaScript applications. It provides a robust framework for managing application state by synchronizing data across browsers, mobile devices, and server-side runtimes. By treating local storage as the primary source of truth, it enables applications to remain functional without network connectivity, automatically reconciling changes with remote backends once a connection is restored. The database distinguishes itself through a modular architecture that supports cross-environment synchronization and high-performance d

ffsend is a command line client for the Firefox Send protocol, providing a secure file transfer tool for uploading and downloading encrypted files. It serves as a client-side encryption file share that ensures data is encrypted locally before being uploaded to a remote server. The tool is compatible with both public and private instances of the Send server, allowing users to redirect data transfers to self-hosted server deployments. It covers ephemeral file hosting with the ability to set expiration dates and download limits, as well as password protection for shared links. Additional capabi

Send is a self-hosted file transfer service designed for end-to-end encrypted file sharing. It provides a privacy-focused data transfer solution and ephemeral file storage where uploaded content is automatically deleted after a specified number of downloads or a set amount of time. The service ensures private file sharing by utilizing client-side encryption to protect data before it is uploaded. Decryption keys are distributed to recipients via URL hash fragments to ensure the server never has access to the keys. The platform supports encrypted data transfer and temporary file hosting. It us

Joplin is an open-source, cross-platform note-taking application designed for secure, private knowledge management. It functions as a local-first productivity platform, maintaining a complete relational database on the user's device to ensure offline availability and high-performance data retrieval. The application prioritizes data sovereignty by implementing an end-to-end encryption layer, which secures all information locally with a master key before any synchronization occurs. The platform distinguishes itself through a delta-based synchronization engine that transmits only specific file c

Stalwart is a self-hosted email and collaboration infrastructure that provides an integrated mail server supporting SMTP, IMAP, POP3, and JMAP protocols. It functions as a comprehensive communication hub, combining email hosting with a collaboration server for shared calendars, contacts, and files. The system distinguishes itself through a distributed architecture that uses peer-to-peer cluster coordination to ensure high availability and fault tolerance. It features a built-in security suite that implements an S/MIME and OpenPGP email gateway alongside automated TLS certificate provisioning

This project is a web-based collaborative editor and scientific document management system designed for LaTeX. It provides a centralized environment for writing, editing, and compiling academic manuscripts, enabling multiple users to work on the same project simultaneously through real-time synchronization. The platform distinguishes itself by treating documents as version-controlled repositories, allowing for granular history tracking and bidirectional synchronization with external version control systems. It features a secure, containerized compilation pipeline that isolates build processes

This project provides containerized images for deploying a self-managed content collaboration and file sharing server. It enables the creation of private cloud storage and self-hosted file synchronization environments, allowing users to maintain data ownership and control over their infrastructure. The deployment model utilizes Docker images to simplify installation, scaling, and version updates. It distinguishes itself through a database-agnostic storage approach, supporting integration with PostgreSQL, MySQL, MariaDB, or SQLite, and employs volume mapping to ensure data persistence across c

SparkleShare is a self-hosted file sharing platform and cross-platform synchronization application. It functions as a private alternative to cloud storage, using Git repositories as the primary backend to version and synchronize files across Linux, macOS, and Windows devices. The system employs Git Large File Storage to manage large binary files, ensuring data integrity and performance. It allows users to maintain private file repositories on self-managed servers to ensure data privacy and control. The application provides automated directory mirroring by monitoring local filesystem changes

Calibre is a comprehensive suite for digital library management, serving as a centralized hub for organizing, converting, and editing e-book collections. It functions as a multi-purpose platform that combines a relational database for metadata tracking with a powerful processing engine capable of transforming document formats and restructuring internal markup. Beyond local management, the software acts as a content server, enabling users to host their libraries over a network for remote access and reading via standard web browsers. The project distinguishes itself through its deep extensibili