How to check the total number of object stored in S3 bucket in AWS?

Method 1:

1. Go to your S3 Buckets, select the bucket
2. In the next screen, check the folder, click "Actions" button, select total size
   
3. You will see a pop-up, with Total Object count and total size.
   

Method 2:

Using S3 API

aws s3api list-objects --bucket BUCKETNAME --output json --query "[length(Contents[])]"

For a specific folder

aws s3api list-objects --bucket BUCKETNAME --prefix "folder/subfolder/" --output json --query "[length(Contents[])]"

Method 3:

Using AWS CLI

aws s3 ls s3://bucketName/path/ --recursive --summarize | grep "Total Objects:"

Total Objects: 4023

You can also use  --summarize switch which includes bucket summary information

Here is the example using amazon CLI

aws s3 ls s3://bucketName/path/ --recursive --summarize | grep "Total Objects:"

Total Objects: 7235

Thanks