7.14 Multiple File Upload to AWS S3 Bucket

Uploading multiple files to an AWS S3 bucket efficiently is crucial for handling large data sets, backups, or batch processing. AWS provides various methods, including the AWS Management Console, AWS CLI, and AWS SDK using Boto3 in Python, to facilitate batch uploads.

Methods for Multiple File Upload

Using AWS Management Console

  1. Access AWS Management Console: Log into your AWS account.
  2. Navigate to S3 Service: Go to the S3 dashboard.
  3. Select Your Bucket: Choose the bucket where files will be uploaded.
  4. Upload Files:
    • Click on ‘Upload’.
    • Drag and drop files or use the file dialog to select multiple files.
    • Configure file settings like permissions and metadata, if necessary.
    • Click on ‘Upload’ to start the upload process.
  5. Monitor Upload Progress: Track the progress in the interface


  1. Install and Configure AWS CLI: Ensure AWS CLI is installed and properly configured.
  2. Bulk Upload Command:
    • Navigate to the directory containing the files to upload.
    • Use the following command:
aws s3 cp . s3://YOUR-BUCKET-NAME/ --recursive
  • Replace YOUR-BUCKET-NAME with your bucket’s name.

Using AWS SDK with Boto3 in Python

  1. Install Boto3:
pip install boto3

Set Up Script:

  • Import Boto3 and set up your AWS credentials (either in the script or using environment variables).
  • Write a Python script to loop through the files and upload them:
import boto3
import os

s3_client = boto3.client('s3')
bucket_name = 'YOUR-BUCKET-NAME'

def upload_files(path):
    for file in os.listdir(path):
        if os.path.isfile(os.path.join(path, file)):
            s3_client.upload_file(os.path.join(path, file), bucket_name, file)


Replace YOUR-BUCKET-NAME and 'your/local/directory' with your bucket’s name and your local directory path.

3.Execute the Script: Run your Python script to start the upload process.

Best Practices

  • File Naming: Ensure your file names are unique to avoid overwriting.
  • Error Handling: Implement error handling in your scripts to manage failed uploads.
  • Security: Apply proper access controls to your S3 bucket and files.
  • Large Files: Consider using S3 Transfer Acceleration for faster uploads of large files.


Multiple file uploads to AWS S3 can be efficiently managed via the AWS Management Console, AWS CLI, and AWS SDK with Boto3 in Python. Each method offers unique advantages, allowing users to choose the one best suited to their requirements and technical proficiency.

Refer to AWS S3 Documentation for more details on managing S3 buckets and handling file uploads.

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