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Dropbox

dropbox.com

Dropbox is a cloud storage and file sharing platform designed for secure collaboration. It offers tools for storing, sharing, and accessing files across devices, plus additional products including video review, digital document signing, company content organization, and AI integrations. The service is used by over 700 million registered users, with solutions tailored for teams, industries including construction, technology, manufacturing, media, education, and enterprise use cases.

maestral

maestral.app

Maestral is an open source Dropbox client for macOS and Linux. It offers a command line interface, a lightweight native GUI for macOS and a Qt-based interface for Linux, and can sync multiple Dropbox accounts. It supports .mignore patterns to exclude local files from syncing. As of June 2026, Maestral is no longer actively maintained.

Air Live Drive

airlivedrive.com

Air Live Drive is a tool for Windows and macOS that mounts cloud storage as local disks, so remote files can be opened with any application without syncing or using local disk space. It supports Google Drive, OneDrive, Dropbox, S3 and more than 40 services, and a free version is available.

AuthPass

authpass.app

AuthPass is a free and open-source KeePass-compatible password manager built with Flutter, available for Android, iOS, macOS, Linux and Windows. It loads and decrypts kdbx files using a password and/or key file, organizes credentials in groups and supports cloud sync via Google Drive, Dropbox or WebDAV. Fingerprint unlock and Android password auto-fill are offered.

Bort

bort.io

Bort is a web-based bookmark management application that supports importing existing browser bookmarks, syncing data via Dropbox, and exporting bookmark collections. It provides browser extensions to simplify the bookmarking process. Its personal demo version saves bookmarks locally in the user's browser, and logging out of the demo will clear the locally stored bookmark database.

Cryptomator

cryptomator.org

Cryptomator is an open-source encryption tool for cloud storage. It encrypts files on the user's device before they are stored in services such as Dropbox, Google Drive and OneDrive, and makes them available through a virtual drive. It is available for Windows, macOS, Linux, Android and iOS.

Cryptomator

github.com

Cryptomator is an open-source project offering multi-platform transparent client-side encryption of files in the cloud. It works with Dropbox, Google Drive, OneDrive, MEGA, pCloud, ownCloud, Nextcloud and any other cloud storage service which synchronizes with a local directory, using AES encryption with 256-bit key length. File names are encrypted and folder structure is obfuscated.

Dillinger

dillinger.io

Dillinger is a free online markdown editor with live preview that requires no signup. It supports cloud sync with GitHub, Dropbox, Google Drive, OneDrive, and Bitbucket, and allows one-click export to Markdown, styled HTML, or PDF. The editor works offline, includes a distraction-free zen mode, and is built on the Monaco editing engine.

Document Search is a component of the OSINT Toolkit that provides a suite of public record and document search utilities. It supports searching for public documents across platforms including Google Drive, SlideShare, Amazon AWS, Dropbox, ISSUU, Scribd, Doc Stoc and Prezi, alongside searches for Companies House person and company records, SEC EDGAR filings, Pastebin posts, electoral roll entries, and hacker forum content. The toolkit also provides access to trending and popular Pastebin posts, UK legislation directories, case law databases, worldwide company data and country profiles.

Duplicity is a command-line backup utility that produces encrypted tar-format volumes and uploads them to a remote or local file server. It uses librsync so incremental archives record only changed parts of files, and GnuPG to encrypt and sign archives. It supports many backends, including Amazon S3, Backblaze B2, Dropbox, ftp, Google Drive, rsync and ssh/scp.

Feed Flow

feedflow.dev

Feed Flow is a minimal RSS reader that presents feeds in a clean chronological timeline with no algorithmic sorting. It is available for Android, iOS, macOS, Windows and Linux, requires no account, and supports RSS, Atom and OPML formats. It offers sync options including iCloud, Dropbox, Google Drive and self-hosted services such as FreshRSS, Miniflux, Feedbin and BazQux, and supports offline reading and reader mode.

FileStash

filestash.app

Filestash, formerly Nuage, is a self-hosted web client for data storage. It connects to backends including S3, SFTP, FTP, WebDAV, SMB, NFS, Dropbox, Google Drive and Git repositories. The project describes itself as an open source platform for file sharing, document management, MFT and archiving, with a unified API and gateways that expose data over protocols such as SFTP, S3, WebDAV, FTP and MCP.

Floccus

floccus.org

Floccus is software for syncing bookmarks and tabs privately across browsers and devices. Apps are available for browsers, iOS and Android, syncing via a Nextcloud, Linkwarden, KaraKeep, Git or WebDAV server, or via Google Drive or Dropbox. It is free and open source software with no ads and no data collection. Safari is currently not supported due to technical limitations.

Floccus

github.com

Floccus is a browser extension and mobile app that syncs native browser bookmarks privately across browsers and devices. It supports sync via Nextcloud Bookmarks, Linkwarden, KaraKeep, Google Drive, Dropbox, Git servers and WebDAV services. Users can create multiple sync profiles and control sync strategy, interval and synced folder.

Flow

flowoss.com

Flow is a free, open-source, browser-based online EPUB reader usable as a progressive web app across web, Windows, Linux, macOS, Android and iOS. It supports reading multiple books at once, an offline-first mode after installation, and custom cloud storage. Data is stored locally in the browser using IndexedDB; Dropbox is the only supported cloud storage.

Frames

github.com

Frames is a modern open source streaming video on demand (SVOD) platform built with React and NestJS. It supports streaming MP4 files from storage providers including local storage, S3, Dropbox and Google Drive, and is hosted on GitHub.

gocryptfs

nuetzlich.net

gocryptfs is a free file-based encryption tool implemented as a mountable FUSE filesystem, storing each file as one corresponding encrypted file on disk. Encrypted files can be kept in any folder, a USB stick or Dropbox, and file-based encryption allows efficient synchronisation with tools like rsync. Linux is fully supported and macOS support is beta quality.

Joplin

joplinapp.org

Joplin is a free, open-source note-taking and to-do application that organises notes into notebooks. Notes are stored in Markdown and are searchable, taggable and editable, with offline-first access, end-to-end encryption, plugins and themes, and sync via services including Nextcloud, Dropbox, OneDrive and Joplin Cloud. Apps exist for Windows, Linux, macOS, Android and iOS, plus a Firefox and Chrome web clipper.

Jupyter

jupyter.org

Jupyter Notebook is a web-based interactive computing platform combining live code, equations, narrative text, visualizations, and dashboards. It supports over 40 programming languages, including Python, R, Julia, and Scala, and notebooks can be shared via email, Dropbox, GitHub, and the Jupyter Notebook Viewer.

MetaCTRL

metactrl.com

MetaCTRL offers Android apps for automatic file sync and backup between Android devices and cloud storage services including Dropbox, Google Drive, OneDrive, MEGA, Box, pCloud and Yandex Disk. The apps sync files in both directions and across multiple devices, and can be configured to upload new photos automatically.

Meteor-Files

github.com

Meteor-Files is a GitHub-hosted open source project developed by veliovgroup for uploading files to Meteor server file systems, AWS, GridFS, Dropbox or Google Drive via DDP or HTTP protocols. The project is designed for use with Meteor.js and is described as fast, secure and robust.

Moon+ Reader is an Android ebook reader with free and Pro versions. It reads local books and supports multiple online book sites, with real-time smooth scroll. Supported formats include txt, html, epub, pdf, mobi, azw/azw3, fb2 and others. It offers visual options, embedded themes, paging options and auto-scroll modes. Reading positions, bookmarks and notes can sync via DropBox or WebDav.

MultCloud

multcloud.com

MultCloud is a web service for transferring, syncing, backing up, and managing files across multiple cloud storage accounts. It connects over 30 services, including Google Drive, OneDrive, Dropbox, Box, MEGA, and FTP, and claims transfers occur directly between clouds without downloading and re-uploading. A single login provides access to connected accounts, and users can schedule transfers and sync folders one-way or two-way.

OneLinePlayer

onelineplayer.com

OneLinePlayer is a free web video player for Vimeo and Dropbox videos. It uses a direct link to a video file and offers preview images, player style adjustments, and controls such as autoplay, loop and mute. A GIF mode is available. The makers state they are not a video hosting platform. Certain Vimeo controls customization requires a Vimeo Plus plan or above.