1. OneDrive：
OneDrive 或 Microsoft OneDrive 是 Microsoft 提供的文件托管和同步服务。它为用户存储文件、个人数据和共享文件提供了便利。它提供 5 GB 的免费存储空间。它由微软于 2007 年推出，主要供专业工作者使用，用于存储可能需要更高安全性的工作相关数据。
2.百度云：
百度云是百度公司提供的云服务。它提供云存储服务、客户端软件、文件管理、资源共享和第三方集成。一旦在客户端上创建文件，它就可以在基于 Internet 的客户端上自动同步文件。它由百度公司于2012年推出。它的实际名称是百度网盘，但俗称百度云。
OneDrive 和百度云的区别：
| ONEDRIVE | BAIDU CLOUD |
|---|---|
| It is owned by Microsoft Incorporation. | It is owned by Baidu Incorporation. |
| It was launched in 2007. | It was launched in 2012. |
| It offers 5 GB free storage space. | It offers 6 GB free storage space. |
| It charges comparatively more for additional storage that means it is more costly. | It charges less for additional storage that means it is less costly. |
| The number of users using OneDrive is more. | The number of users using Baidu Cloud is less. |
| It is used world wide. | While it is used in some specific region and specific countries like China. |
| It provides full security of data. | It also provides full security of data but comparatively less. |
| It has the maximum storage size of 5 TB. | It has the maximum storage size of 2 TB. |
| Maximum file size in OneDrive is 100 GB. | Here maximum file size is 4 GB for free and 20 GB for paid. |
| It supports file versioning. | It does not supports file versioning. |