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Open Source Cloud File Sync & Share Tools

A curated collection of the best open source services for synchronizing files across devices using cloud storage..

LocalSend

Share files securely across all devices without servers

  • Stars

    Stars growing over the last 30 days98,002

  • Last commit

    1 day ago

  • License

    Apache-2.0
Free, open-source file sharing tool for nearby devices. Cross-platform support with end-to-end encryption, no registration required, automatic device discovery.

Open Source Alternative to:

Apple AirDrop

Puter

A full desktop environment that runs in your browser

  • Stars

    44,113

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
Puter is a cloud-based desktop OS you run in the browser, with built-in apps, file storage, and support for hosting web apps and sites.

Open Source Alternative to:

Google Drive

Spacedrive

Your personal distributed filesystem

  • Stars

    39,468

  • Last commit

    3 days ago

  • License

    Apache-2.0
A cross-platform file manager that unifies your devices into a seamless, organized digital workspace.

Open Source Alternative to:

Google Drive

Nextcloud

Secure cloud collaboration platform for organizations

  • Stars

    37,452

  • Last commit

    11 hours ago

  • License

    AGPL-3.0
Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features.

Open Source Alternative to:

Google Drive

Seafile

Self-hosted file sync with AI-powered organization

  • Stars

    15,440

  • Last commit

    24 days ago

  • License

    Unknown
Open source file sync and sharing platform with custom properties, AI automation, collaborative editing, and enterprise-grade security for teams.

Open Source Alternative to:

Google Drive

PairDrop

Instant file sharing across devices without setup

  • Stars

    11,771

  • Last commit

    7 months ago

  • License

    GPL-3.0
Share files instantly between devices using peer-to-peer technology. No registration, installation, or configuration required. Works cross-platform.

Open Source Alternative to:

WeTransfer

OpenCloud

Self-hosted file sharing built for digital sovereignty

  • Stars

    6,299

  • Last commit

    3 days ago

  • License

    Apache-2.0
Self-hostable cloud file management and collaboration platform with an integrated office suite, zero-trust security, and GDPR compliance for teams and organizations.

Open Source Alternative to:

Google Drive

Sync-in

Open-source file storage with complete data sovereignty

  • Stars

    Stars growing over the last 30 days1,964

  • Last commit

    11 hours ago

  • License

    AGPL-3.0
Secure, open-source platform for file storage, sharing, and collaboration. Host your data on your own infrastructure with full control and transparency.

Open Source Alternative to:

Google Drive

Peergos

Secure, private, and decentralized file storage

  • Stars

    2,552

  • Last commit

    4 hours ago

  • License

    AGPL-3.0
A peer-to-peer encrypted filesystem for secure file storage, sharing, and collaboration with end-to-end encryption and user-controlled data.

Open Source Alternative to:

Dropbox

ownCloud

Enterprise file sync, share, and collaboration platform

  • Stars

    2,185

  • Last commit

    4 hours ago

  • License

    Apache-2.0
Self-hostable file platform for enterprises needing data sovereignty, real-time document collaboration, and compliance with GDPR, HIPAA, and other regulations.

Open Source Alternative to:

Google Drive

Hoodik

Secure self-hosted cloud storage with end-to-end encryption

  • Stars

    1,553

  • Last commit

    4 days ago

  • License

    Unknown
Lightweight, self-hosted cloud storage built with Rust and Vue.js. Features end-to-end encryption, file sharing, search capabilities, and Docker deployment.

Open Source Alternative to:

Dropbox

Cozy

Your secure French personal cloud for complete data control

  • Stars

    1,268

  • Last commit

    3 days ago

  • License

    AGPL-3.0
Open-source personal cloud that automatically gathers all your data from third-party services. French-hosted with privacy-first design, no ads, and seamless device sync.

Open Source Alternative to:

1Password

Twake Drive

Secure open source file storage with end-to-end encryption

  • Stars

    994

  • Last commit

    3 days ago

  • License

    AGPL-3.0
Open source encrypted data storage solution offering secure file sharing, collaboration tools, and on-premises deployment for professional teams.

Open Source Alternative to:

Google Drive

Firefiles

Bring your own cloud storage, managed in one place

  • Stars

    370

  • Last commit

    1 year ago

  • License

    AGPL-3.0
Firefiles turns S3 buckets and other cloud backends into a unified file manager with browser-based previews, multi-drive support, and a clean light/dark interface.

Open Source Alternative to:

Google Drive
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