ossbrowser is a graphical tool for managing Object Storage Service (OSS) buckets and objects. For example, use ossbrowser to create buckets, delete buckets, upload objects, download objects, preview objects, copy objects, move objects, and share objects.
Prerequisites
Use cases
Upload and download a large object that is greater than 5 GB in size
By default, ossbrowser uses multipart and resumable uploads. The maximum object size is 48.8 TB. ossbrowser automatically splits the object into parts during the upload and combines the parts into a complete object after the parts are uploaded.
Access a bucket directory with a token
Use a token obtained from Security Token Service (STS) to log on to ossbrowser. Provide these tokens to other users for temporary, authorized access to a specific directory. The token automatically becomes invalid after it expires.
The examples in this topic use the list view. Click the 
icon to switch to the tiled view.
Manage buckets
You can perform the same bucket operations in ossbrowser as you can in the OSS console. Follow the on-screen instructions in ossbrowser to manage buckets.
Managing buckets requires the necessary permissions. For more information, see Manage permissions.
Operation | Description |
Create a bucket | A bucket is a container for storing objects in OSS. Before you upload an object to OSS, you must create a bucket. For more information about bucket naming rules, regions, access control lists (ACLs), and storage classes, see Create a bucket. |
List buckets | After logging on, ossbrowser automatically lists all buckets in the account. |
Delete a bucket | If you no longer use a bucket, delete the bucket to prevent unnecessary charges. For more information, see Delete buckets. |
Query the region of a bucket | Click the name of a bucket and view its region in the upper-right corner of the page that appears. For example, oss-cn-hangzhou represents the China (Hangzhou) region. For more information about the mappings between region IDs and region names, see Regions and endpoints. |
Manage objects
You can use ossbrowser to perform the same object-level operations that you can perform in the OSS console. Follow the on-screen instructions in ossbrowser to manage objects. Before managing objects in a bucket, you must click the name of the bucket to view the object list.
To perform a specific operation on objects, you must have the required permissions. For more information, see Manage permissions.
For more details on an operation, refer to the corresponding topic for the OSS console.
Operation | Description |
Upload an object | By default, ossbrowser uses multipart and resumable uploads. The maximum object size is 48.8 TB. If an upload is interrupted, the uploaded portion is stored as parts in the bucket. To avoid storage fees for unneeded parts, delete them using one of the following methods:
Important If the uploaded object has the same name as an existing object in the bucket, the existing object is overwritten. |
Upload a directory | Click the |
Download an object | Select the object that you want to download and click Download in the Actions column. Note Select multiple objects and click Download in the upper part of the object list to download them at a time. |
Download a directory | Select the directory that you want to download and click the |
List objects | If you click the name of a bucket, objects in the bucket are automatically listed. |
Preview an object | Click the name of an object to preview the object. |
Copy an object | In the source bucket, select the object that you want to copy and click Copy. In the destination bucket, click Paste. Important
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Move an object | Choose More > Move. Important The move operation copies the object to the destination and then deletes the source. Note the following:
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Rename an object | Select the object that you want to rename and choose More > Rename at the top of the object list. Important The rename operation copies the source object to the destination and then deletes the source object. Note the following:
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Search for objects | Enter an object prefix in the search box at the top of the object list. View the objects and folders that match the specified prefix in the bucket root directory. |
Restore an object | Select the object that you want to restore and choose More > Restore at the top of the object list. |
Delete an object | Select the object and click Remove in the Actions column. |
Create a symbolic link for an object |
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Manage metadata of an object |
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Share an object | Share an object's URL with third parties, allowing them to download or preview it. To share an object, find the object and click Address in the Actions column to generate a URL. |
Configure the ACL of an object |
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icon to upload a directory. 
icon in the upper part of the object list.