Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Amazon S3 Object Lambda availability change

After careful consideration, S3 Object Lambda as of November 7th, 2025 is available only to existing customers that are currently using the service as well as to select Amazon Partner Network (APN) partners. Existing customers of S3 Object Lambda, as well as customers using or deploying APN partner solutions, can continue to use the service as usual. Amazon will prioritize security and availability improvements for S3 Object Lambda, but we do not plan to introduce new capabilities

There are several alternative services and designs that allow you to modify and process data accessed from S3 to meet the needs of various client applications or users who are accessing the data. Those alternatives include the Amazon Solution Dynamic Image Transformation for Amazon CloudFront, invoking Amazon Lambda by other means (via CloudFront, API Gateway, or function URLs), or processing data in the client application. All of these alternatives continue to use Amazon S3 for the underlying storage, so no data migration is necessary.

In this post, we discuss how to choose the best option for your use case.

Dynamic Image Transformation for Amazon CloudFront

This Amazon solution enables real-time image processing through the global content delivery network (CDN) of Amazon CloudFront using API Gateway and Lambda. It supports a variety of transformations such as format changes, dimensions, fit methods, rotations, and filters. If you are using S3 Object Lambda today for image transformation, this can be a good alternative. The solution overview has more details on capabilities and how to get started using it. Be sure to modify the Enable S3 Object Lambda template parameter to "No" when deploying the solution to your account.

For more information, see Dynamic Image Transformation for Amazon CloudFront.

Data processing in Amazon Lambda

You can continue to use Amazon Lambda for your data processing, but invoke it directly or through other Amazon services. Your data processing logic can remain the same, but your Lambda function will need to be updated based on how you choose to invoke it. This option is best for use cases such as sensitive data redaction, format changes, or situations where the application that invokes S3 Object Lambda relies on receiving processed data. This option also minimizes the changes required if you choose to migrate off S3 Object Lambda.

If you are using an S3 Object Lambda access point as the origin of a CloudFront distribution, you can create a new origin using either Lambda Function URLs or API Gateway. This blog details how you can setup a Lambda Function URL to act as an origin for your CloudFront distribution.

If you directly invoke S3 Object Lambda from your client code today, you can use Lambda Function URLs to directly invoke your Lambda function or you can use API Gateway. If you're not sure which is the best method for your use case, see Select a method to invoke your Lambda function using an HTTP request in the Amazon Lambda Developer Guide. After you have decided which method for invoking Lambda is best for your use case and have setup your Lambda function accordingly, you will also need to update your calling application to invoke your Lambda function rather than calling S3 Object Lambda.

Data processing in the client application

You also have the option of moving your data processing logic from S3 Object Lambda into your client application. This works best if you are using S3 Object Lambda as part of an application that already performs further processing or analysis of the data returned by S3 Object Lambda. For example, if your S3 Object Lambda access point was responsible for redirecting to particular objects or object versions, that redirect logic can be moved into the calling application which would then directly access data in the S3 bucket.

If you need assistance or have feedback, contact Amazon Web Services Support.