Free open source alternative app list of Cloud Storage :

puter

puter is a free, open-source alternative to Dropbox . The Open-Source Internet Computer! « LIVE DEMO » Puter.com · App Store · Developers · Discord · Reddit · X Puter Puter is an advanced, open-source, self-hostable internet computer designed to be feature-rich, fast, and highly extensible. For Users Puter's goal is to provide you with every app and feature you need to work, create, and play under one roof. From a simple Notepad and Voice Recorder to Spreadsheet and Camera , Puter wants to be the all-in-one solution for your digital life. For Developers Puter provides everything you need to build and publish web apps and games. From AI to Cloud Storage and Database to Serverless Workers , Puter has you covered. Puter also helps you get users! Once you build your app, you can publish it on our App Store to reach and monetize users. Getting Started 💻 Local Development git clone https://github.com/HeyPuter/puter cd puter npm install npm start → This should launch Puter at http://puter.localhost:4100 🚀 Self-Hosting Linux/macOS curl -fsSL https://puter.com/selfhost | sh Windows irm https: // puter.com / selfhost?os = windows | iex → For more details, see Self-Hosting Puter . ☁️ Puter.com Puter is available as a hosted service at puter.com . Support Connect with the maintainers and community through these channels: Bug report or feature request? Please open an issue . Discord: discord.com/invite/PQcx7Teh8u X (Twitter): x.com/HeyPuter Reddit: reddit.com/r/puter/ Mastodon: mastodon.social/@puter Security issues or abuse reports? [email protected] Email maintainers at [email protected] We are always happy to help you with any questions you may have. Don't hesitate to ask! License This repository, including all its contents, sub-projects, modules, and components, is licensed under AGPL-3.0 unless explicitly stated otherwise. Third-party libraries included in this repository may be subject to their own licenses. Translations Arabic / العربية Armenian / Հայերեն Bengali / বাংলা Chinese / 中文 Danish / Dansk English Farsi / فارسی Finnish / Suomi French / Français German / Deutsch Hebrew/ עברית Hindi / हिंदी Hungarian / Magyar Indonesian / Bahasa Indonesia Italian / Italiano Japanese / 日本語 Korean / 한국어 Malay / Bahasa Malaysia Malayalam / മലയാളം Polish / Polski Portuguese / Português Punjabi / ਪੰਜਾਬੀ Romanian / Română Russian / Русский Spanish / Español Swedish / Svenska Tamil / தமிழ் Telugu / తెలుగు Thai / ไทย Turkish / Türkçe Ukrainian / Українська Urdu / اردو Vietnamese / Tiếng Việt

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spacedrive

spacedrive is a free, open-source alternative to ExpanDrive . Spacedrive One file manager for all your devices and clouds. Powered by a Virtual Distributed File System, complete with apps for macOS, Windows, Linux, iOS and Android v2.spacedrive.com • Discord • Getting Started What is Spacedrive? Spacedrive is a cross-device data platform. Index files, emails, notes, and external sources. Search everything. Sync via P2P. Keep AI agents safe with built-in screening. Content identity — every file gets a BLAKE3 content hash. Same file on two devices produces the same hash. Spacedrive tracks redundancy and deduplication across all your machines. Cross-device — see all your files across all your devices in one place. Files on disconnected devices stay in the index and appear as offline. P2P sync — devices connect directly via Iroh/QUIC. No servers, no cloud, no single point of failure. Metadata syncs between devices. Files stay where they are. Cloud volumes — index S3, Google Drive, Dropbox, OneDrive, Azure, and GCS as first-class volumes alongside local storage. Nine views — grid, list, columns, media, size, recents, search, knowledge, and splat. QuickPreview for video, audio, code, documents, 3D, and images. Local-first — everything runs on your machine. No data leaves your device unless you choose to sync between your own devices. Is this a replacement for Finder or Explorer? No. Spacedrive sits above your OS file manager and adds capabilities Finder/Explorer lack: Portal across everything — search and browse files across local disks, external drives, NAS, cloud storage, and archived data sources from one interface. Operating surface for files — content identity, sidecars, derivative artifacts, rich metadata, sync, and cross-device awareness built into the core model. Embeddable and shareable — run it as a desktop app, headless server, hosted file service, or embed the interface and APIs into other products. AI-ready by design — indexing and analysis pipelines prepare data ahead of time instead of giving agents raw shell access. Safer access model — route AI and automation through structured APIs, permissions, and processing layers instead of direct file operations. You still use your OS for low-level file interactions. Spacedrive adds the cross-platform, cross-device, cloud-aware, and automation-friendly layer on top. Data Archival Spacedrive indexes external data sources via script-based adapters: Gmail, Apple Notes, Chrome bookmarks, Obsidian, Slack, GitHub, calendar events, contacts. Each source becomes a searchable repository alongside your files. Adapters are a folder with an adapter.toml manifest and a sync script in any language. If it reads stdin and prints lines, it works. Shipped adapters: Gmail, Apple Notes, Chrome Bookmarks, Chrome History, Safari History, Obsidian, OpenCode, Slack, macOS Contacts, macOS Calendar, GitHub. Spacebot Spacedrive integrates with Spacebot , an open source AI agent runtime. Spacebot runs as an optional separate process. Spacedrive provides the data, permission, and execution layer. Spacebot provides the intelligence. Each Spacebot instance pairs with one Spacedrive node as its home device. That node authenticates the agent, maintains the device graph, resolves permissions, and forwards operations to peer devices. Every device in your library can reach Spacebot through the paired node over P2P (Iroh/QUIC) without direct network access. One agent runtime serves your entire device fleet. When Spacebot spawns a worker, that worker can target any device in the library. File reads, shell commands, and operations proxy through Spacedrive to the target device. Talk to the agent from your phone while work executes on a server. Read files from a NAS, run commands on a workstation, report to a laptop — all in one task. Every operation passes through Spacedrive's permission system: which devices the agent can access, which paths are readable or writable, which operations are allowed, and which require human confirmation. The paired node resolves effective policy before forwarding. One security model, one audit surface across all devices and clouds. File System Intelligence Spacedrive adds intelligence to your filesystem by combining three layers: File intelligence — derivative data like OCR, transcripts, extracted metadata, thumbnails, previews, classifications, and sidecars. Directory intelligence — contextual knowledge attached to folders and subtrees ("active projects", "dormant archives", etc). Access intelligence — permissions and policy that apply across devices and clouds, routing agents through structured access instead of raw shell commands. When an agent navigates through Spacedrive, it receives the file listing, subtree context, effective permissions, and summaries. Users can explain how they organize their system. Agents can add attributed notes. Jobs generate summaries from structure and activity. The intelligence stays attached to the filesystem, not buried in temporary session memory. Safety Screening When enabled, every record passes through a safety pipeline before becoming searchable: Prompt Guard 2 — local classifier detects prompt injection in emails, messages, and documents before they enter the index. Trust tiers — authored content (your notes) gets balanced screening, external content (email inbox) gets strict screening. Quarantine system — flagged records excluded from AI agent queries, reviewable in desktop app. Content fencing — search results include trust metadata so agents know what's safe vs untrusted. No other local data tool screens indexed content before exposing it to AI. Architecture The core is built on four principles: Virtual Distributed Filesystem (VDFS) — files and folders become first-class objects with rich metadata, independent of physical location. Every file gets a universal address ( SdPath ) that works across devices. Content Identity System — adaptive hashing (BLAKE3 with strategic sampling for large files) creates a unique fingerprint for every piece of content. Enables deduplication, redundancy tracking, and content-based operations. Transactional Actions — every file operation can be previewed before execution. See space savings, conflicts, and estimated time, then approve or cancel. Operations become durable jobs that survive network interruptions and device restarts. Leaderless Sync — peer-to-peer synchronization without central coordinators. Device-specific data uses state replication. Shared metadata uses an HLC-ordered log with deterministic conflict resolution. The implementation is a single Rust crate with CQRS/DDD architecture. Every operation (file copy, tag create, search query) is a registered action or query with type-safe input/output that auto-generates TypeScript types for the frontend. Component Technology Language Rust Async runtime Tokio Database SQLite (SeaORM + sqlx) P2P Iroh (QUIC, hole-punching, local discovery) Content hashing BLAKE3 Vector search LanceDB + FastEmbed Cloud storage OpenDAL Cryptography Ed25519, X25519, ChaCha20-Poly1305, AES-GCM Media FFmpeg, libheif, Pdfium, Whisper Desktop Tauri 2 Mobile React Native + Expo Frontend React 19, Vite, TanStack Query, Tailwind CSS v4 Design system SpaceUI (shared component library) Type generation Specta spacedrive/ ├── core/ # Rust engine (CQRS/DDD) ├── apps/ │ ├── tauri/ # Desktop app (macOS, Windows, Linux) │ ├── mobile/ # React Native (iOS, Android) │ ├── cli/ # CLI and daemon │ ├── server/ # Headless server │ └── web/ # Browser client ├── packages/ │ ├── interface/ # Shared React UI │ ├── ts-client/ # Auto-generated TypeScript client │ ├── ui/ # Component library │ └── assets/ # Icons, images, SVGs ├── crates/ # Standalone Rust crates (ffmpeg, crypto, etc.) ├── adapters/ # Script-based data source adapters └── schemas/ # TOML data type schemas Getting Started Requires Rust 1.81+, Bun 1.3+, just , and Python 3.9+ (for adapters). git clone https://github.com/spacedriveapp/spacedrive cd spacedrive just setup # bun install + native deps + cargo config just dev-desktop # launch the desktop app (auto-starts daemon) just test # run all workspace tests Privacy & Security Spacedrive is local-first. Your data stays on your devices. End-to-End Encryption — all P2P traffic encrypted via QUIC/TLS At-Rest Encryption — libraries can be encrypted on disk (SQLCipher) No Telemetry — zero tracking or analytics Self-Hostable — run your own relay servers Data Sovereignty — you control where your data lives Optional cloud integration is available for backup and remote access, but it's never required. The cloud service runs unmodified Spacedrive core as a standard P2P device—no special privileges. Contributing Join Discord to chat with developers and community Contributing Guide Adapter Guide — write a data source adapter SpaceUI — shared design system (clone alongside Spacedrive to work on UI) License FSL-1.1-ALv2 — Functional Source License , converting to Apache 2.0 after two years.

FreeWindowsmacOSLinuxAndroidiOS

server

server is a free, open-source alternative to Dropbox . Nextcloud Server ☁ A safe home for all your data. Why is this so awesome? 🤩 📁 Access your Data You can store your files, contacts, calendars, and more on a server of your choosing. 🔄 Sync your Data You keep your files, contacts, calendars, and more synchronized amongst your devices. 🙌 Share your Data …by giving others access to the stuff you want them to see or to collaborate with. 🚀 Expandable with hundreds of Apps ...like Calendar , Contacts , Mail , Video Chat and all those you can discover in our App Store 🔒 Security with our encryption mechanisms, HackerOne bounty program and two-factor authentication. Do you want to learn more about how you can use Nextcloud to access, share, and protect your files, calendars, contacts, communication & more at home and in your organization? Learn about all our Features . Get your Nextcloud 🚚 ☑️ Simply sign up at one of our providers either through our website or through the apps directly. 🖥 Install a server by yourself on your hardware or by using one of our ready-to-use appliances 📦 Buy one of the awesome devices coming with a preinstalled Nextcloud 🏢 Find a service provider who hosts Nextcloud for you or your company Enterprise? Public Sector or Education user? You may want to have a look into Nextcloud Enterprise provided by Nextcloud GmbH. Get in touch 💬 📋 Forum 🦋 Bluesky 👥 Facebook 🐘 Mastodon You can also get support for Nextcloud ! Join the team 👪 There are many ways to contribute, of which development is only one! Find out how to get involved , including as a translator, designer, tester, helping others, and much more! 😍 Development setup 👩‍💻 🚀 Set up your local development environment 🐛 Pick a good first issue 👩‍🔧 Create a branch and make your changes. Remember to sign off your commits using git commit -sm "Your commit message" ⬆ Create a pull request and @mention the people from the issue to review 👍 Fix things that come up during a review 🎉 Wait for it to get merged! Third-party components are handled as git submodules which have to be initialized first. So aside from the regular git checkout invoking git submodule update --init or a similar command is needed, for details see Git documentation. Several apps that are included by default in regular releases such as First run wizard or Activity are missing in master and have to be installed manually by cloning them into the apps subfolder. Otherwise, git checkouts can be handled the same as release archives, by using the stable* branches. Note they should never be used on production systems. Testing your code We use multiple test frameworks for specific areas of the code: PHPUnit for PHP unit tests Behat for PHP integration tests Vitest for Javascript / Typescript unit tests Playwright for end-to-end tests For our end-to-end tests using Playwright you can refer to our documentation on how to debug errors and to contribute new test cases. Tools we use 🛠 👀 BrowserStack for cross-browser testing 🌊 WAVE for accessibility testing 🚨 Lighthouse for testing performance, accessibility, and more Helpful bots at GitHub 🤖 Comment on a pull request with /update-3rdparty to update the 3rd party submodule. It will update to the last commit of the 3rd party branch named like the PR target. Ignore code style updates in git blame git config blame.ignoreRevsFile .git-blame-ignore-revs Contribution guidelines 📜 All contributions to this repository from June 16, 2016, and onward are considered to be licensed under the AGPLv3 or any later version. Nextcloud doesn't require a CLA (Contributor License Agreement). The copyright belongs to all the individual contributors. Therefore we recommend that every contributor adds the following line to the AUTHORS file if they made substantial changes to the code: - <your name> <your email address> Please read the Code of Conduct . This document offers some guidance to ensure Nextcloud participants can cooperate effectively in a positive and inspiring atmosphere and to explain how together we can strengthen and support each other. Please review the guidelines for contributing to this repository. More information on how to contribute: https://nextcloud.com/contribute/

FreeWindowsmacOSLinuxAndroidiOS

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