Seafile

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ownCloud

With Box, you get a single place to manage, secure, share and govern all of the content for your internal and external collaboration and processes. Box provides a secure service that protects sensitive files in the cloud with intelligent threat detection, and complete information governance. All businesses depends on collaboration between people, from teams to customers, partners and vendors. With box it's easy to keep everyone on the same page while working on business critical content.

Store your files in the cloud with Dropbox and use them across all your devices or share them with friends. Dropbox is a cloud backup services that can be used to store your files online in a secure fashion. With Dropbox you receive 2GB of free storage space when your register, you also get 500MB extra storage for every friend you refer. If you want more you have to opt for a paid subscription.

With pCloud anyone can enjoy 10GB of free cloud storage. pCloud is a secure, European cloud service provider based in Switzerland. The service follows Swiss laws, which are the strictest in the world when it comes to personal data protection. The service feature multi-device usability and multiple file sharing which allows you to send and receive multiple large files simultaneously from anyone.

With Nextcloud, users can host their own secure cloud solution for file storage, collaboration and communication for enterprise or personal purposes. Nextcloud gives you full control over your own data and where and how you host it. The software can be hosted on-premise or on any VPS or cloud instance provided by third-party web hosts. If you value privacy and security, Nextcloud might be the right choice for you. Nextcloud is both free and open source and developed in an open, transparent and trustworthy manner.

Syncthing is a free and open-source continuous file synchronisation software that utilise peer-to-peer technology. The software allows users to send files between two or more computers in real time, safely protected from prying eyes. Syncthing is available for Windows, Mac, Linux, Android, Solaris, and BSD.

Librevault allows you to transfer data directly from one device to another, securely. Librevault is a free and open-source peer-to-peer file synchronization software, designed with convenience. privacy and security in mind. The software encrypts all data with AES-256 and uses TLS for all transmissions. Their goal is to make a better alternative to BitTorrent Sync and Syncthing.