Upload and Manage Objects

Use the Backblaze enterprise web console to upload files from a computer, share objects, download objects, and delete objects.

An individual file on your computer can be uploaded to Backblaze B2 Cloud Storage as long as it is between 0 bytes and 500 MB. The maximum single file size that can be uploaded using the command-line interface (CLI) or the Native API is 5 GB. For files that are larger than 5 GB, see Large Files.

Uploading, downloading, sharing, and deleting objects requires an appropriate object role scoped to the bucket:

• Object Manager – full object management (view, upload, download, share, delete).
• Object Viewer – view and download objects.
• Object Writer – upload and overwrite objects, modify metadata.

Users without one of these roles (or without the Administrator role) for a bucket will not be able to manage objects in that bucket.

To delete all objects in a bucket using the CLI, see Delete Objects with the CLI.

• To delete objects using Lifecycle Rules, see Enable and Manage Lifecycle Rules.
• To delete a bucket, see Create and Manage Buckets.

Upload a File

Files that you upload to Backblaze B2 are stored as objects with metadata, following an object storage model.

1. Sign in to your Backblaze organization.
2. In the left navigation menu, select Buckets.
3. Click the bucket name that should contain the object.
4. Select the Objects tab.
5. Click Upload.
6. Drag a file to the dialog, or manually select a file to upload.
7. Click Close.

View Object Details

1. In the left navigation menu, select Buckets.
2. Click the bucket name that contains the object.
3. Select the Objects tab, and select an object.

Object Details

You can view the following details after your file is uploaded.

% curl -I
https://my-unique-bucket-name.s3.us-west-004.backblazeb2.com/my-sample-image.png
HTTP/1.1 200
Accept-Ranges: bytes
Last-Modified: Wed, 20 Jul 2022 21:18:44 GMT
ETag: "94ef3ecd9772a6dd5d4bdaebddce6a16"
x-amz-meta-src_last_modified_millis: 1658351049017
x-amz-request-id: a2286d690971ff97
x-amz-id-2: aM7Vk6DhsMVhmSTaDN1g4DmI7OB80nzMB
x-amz-version-id: 4_ze30d68217f1617d88b280413_f10477368fe8fd6f1_d20220720_m211844_c004_v0402004_t0001_u01658351924129
Content-Type: image/png
Content-Length: 79571
Date: Wed, 20 Jul 2022 22:07:18 GMT

Download an Object

1. In the left navigation menu, select Buckets.
2. Click the bucket name that contains the object.
3. Select the Objects tab.
4. Select an object.
5. Click(actions overflow) next to the object that you want to download.
6. Click Download.

The object is downloaded to your local default location.

Delete an Object

1. In the left navigation menu, select Buckets.
2. Click the bucket name that contains the object.
3. Select the Objects tab.
4. Delete an object.
   1. Click(actions overflow) next to the object that you want to delete.
   2. Click Delete.
   3. Click Delete Object.
5. Delete a specific object version.
   1. Click the name of the object that you want to delete.
   2. Above the file name, scroll horizontally to the object version that you want to delete.
   3. Click(Delete).
   4. Click Delete Object.

Share an Object

1. In the left navigation menu, select Buckets.
2. Click the bucket name that contains the object.
3. Select the Objects tab.
4. Click(actions overflow) next to the object that you want to share.
5. Select Share with a presigned URL.
6. Specify how long the URL stays active in minutes or hours.
7. Click Generate URL, and copy the value.
8. Click Done.

Create a Folder

1. In the left navigation menu, select Buckets.
2. Click the bucket name that should contain the folder.
3. Select the Objects tab.
4. Click Add Folder.
5. Enter a folder name.
6. Click Create a Folder.