Koofr

中国移动云盘（原名和彩云网盘）是中国移动面向所有用户推出的一款安全、智能、不限速、移动用户免流量的产品。产品涵盖存储备份、多端同步、在线管理、群组分享四大核心能力。

Dropbox helps you simplify your workflow. So you can spend more time in your flow.

The most popular open source content collaboration platform for tens of millions of users at thousands of organizations across the globe

Secure file storage and collaboration that helps youstay safe, secure and connected in the cloud.

百度网盘是一款国民级产品，已连续9年为超过7亿用户提供稳定、安全的个人云存储服务，已实现电脑、手机、电视等多种终端场景的覆盖和互联，并支持多类型文件的备份、分享、查看和处理

Sharing files with file.io is convenient, anonymous and secure. Just upload files and share the links via email, SMS, Slack, Discord, etc. Easy-to-use REST API.