Manage buckets and objects directly from the ossbrowser 2.0 interface. You can create and delete buckets, upload and download objects up to 48.8 TB, preview files, and generate shareable URLs.
Prerequisites
Before you begin, ensure that you have:
Installed ossbrowser 2.0. For details, see Install ossbrowser 2.0.
Logged on to ossbrowser 2.0. For details, see Log on to ossbrowser 2.0.
Use cases
Upload and download objects larger than 5 GB
ossbrowser 2.0 uses multipart upload and resumable upload by default. The maximum object size is 48.8 TB. During upload, ossbrowser 2.0 automatically splits the object into parts and merges them after the upload completes.
Transferring objects larger than 10 GB over a public network can fail due to network instability. If you are not on an internal network and need to transfer objects larger than 10 GB, use the ossutil 2.0 command line interface.
Grant temporary access to a bucket directory
ossbrowser 2.0 supports logon using temporary authorization codes. Share these codes with other users to grant them temporary access to a specific directory in your bucket. The authorization code expires automatically. For details, see Object authorization.
Manage buckets
After logging on, your buckets are listed automatically. To perform bucket-level operations, use the controls described in the following table.
| Operation | Steps |
|---|---|
| Create a bucket | Click Create Bucket at the top of the page. For details on specifying the bucket name, region, access control list (ACL), and storage class, see Create buckets. |
| Delete a bucket | Select the bucket, click the  icon, and choose Delete > Confirm Delete. For precautions before deleting, see Delete buckets. |
| Favorite a bucket | Select the bucket and click the  icon to add it to your favorites. |
| View bucket information | Select the bucket and click the  icon to view Region, ACL, and Creation Time. |
Manage objects
Click a bucket name to open the object list, then use the controls described in the following tables.
Due to a policy change effective March 20, 2025, new OSS users must use a custom domain name (CNAME) for data API operations on OSS buckets in Chinese mainland regions. Default public endpoints are restricted for these operations. If you access data via HTTPS, bind a valid SSL certificate to your custom domain — this is mandatory for OSS Console access.
Upload and download objects
| Operation | Steps and limits |
|---|---|
| Upload an object | Click Upload at the top of the page and select a file. ossbrowser 2.0 uses multipart upload and resumable upload by default. Maximum object size: 48.8 TB. Overwrite behavior: Uploading an object with the same name as an existing object overwrites the existing object. If an upload is interrupted, the uploaded parts remain as fragments in the bucket and incur storage fees until deleted. To delete fragments manually, click File Fragments at the top of the page, select the fragments to remove, and click Delete Selected. To delete fragments automatically, configure lifecycle rules. |
| Upload a folder | Click Upload at the top of the page and select Upload Folder from the drop-down list. Limit: A single upload task supports up to 100,000 objects across the folder and its subfolders. Exceeding this limit returns the error files and folders hit limit=100000 and fails the upload. |
| Download an object | Select one or more objects and click Download at the top of the page. |
| Download a folder | Select a folder and click Download at the top of the page. |
Browse and search objects
| Operation | Steps |
|---|---|
| List objects | Click the bucket name to list all objects in the bucket. |
| Search for objects | Enter an object prefix in the search box at the top of the page to filter objects and folders in the root directory. |
| Preview an object | Click the object name to preview it. Text objects up to 100 MB can be previewed and edited online. Supported formats: .java, .js, .go, .php, .py, .json, .html, .csv, .txt, .xml, and .yml. |
Copy, move, and rename objects
The copy, move, and rename operations each have a 5 GB size limit per object. For objects larger than 5 GB, use ossutil.
| Operation | Steps and notes |
|---|---|
| Copy an object | Select the object, click More > Copy to at the top of the page, select a destination path, and click Copy > Confirm Copy. Note Batch copy operations cannot be resumed if interrupted. |
| Move an object | Select the object, click More > Move to at the top of the page, select a destination path, and click Move > Confirm Move. The move operation copies the object to the destination and then deletes the source. If the copy fails, the source object is not deleted. If the copy succeeds but the deletion fails (for example, due to insufficient permissions), both objects are retained. For objects larger than 5 GB, use ossutil to copy the object and then delete the source object. Note Batch move operations cannot be resumed if interrupted. |
| Rename an object | Select the object, click the  icon on the right, select Rename, enter a new name, and click Confirm. The rename operation copies the object and then deletes the original. If the copy fails, the source object is not deleted. If the copy succeeds but the deletion fails (for example, due to insufficient permissions), both objects are retained. Folder rename operations cannot be resumed if interrupted. |
More object operations
| Operation | Steps |
|---|---|
| Restore an object | Select the object and choose More > Restore. |
| Delete an object | Select the object and click More > Delete. |
| Share an object | Select the object, click the icon on the right, and select Get URL. Enter a validity period, click Generate, and copy the URL to share. |
| Set object ACL | Select the object, click the icon on the right, and select Set ACL. In the ACL dialog box, select a permission and click Confirm Authorization. |
| Set a symbolic link | Select the object, click the icon on the right, and select Set Symbolic Link. In the Set Symbolic Link panel, set Symbolic Link Directory and click OK. |
| Set object metadata | Select the object, click the icon on the right, and select Set Object Metadata. In the Set Metadata panel, configure the metadata and click OK. |
What's next
Object authorization using ossbrowser 2.0 — Grant temporary directory access via authorization codes.
ossutil 2.0 overview — Transfer objects larger than 10 GB over public networks.
Lifecycle rules based on the last modified time — Automatically clean up upload fragments.