How to upload file with the 10gb size in asp net c sharp


Uploading files in ASP.NET using C# is a common requirement for many web applications. However, when dealing with large files, such as a 10GB file, there are certain considerations and challenges that need to be addressed. In this article, we will explore different approaches to large files in ASP.NET using C#.

Approach 1: Chunked File Upload

One way to handle large file uploads is by using a chunked file upload approach. This involves breaking the large file into smaller chunks and uploading them one by one. This approach allows for better control over the upload process and reduces the chances of timeouts or memory .

// Example code for chunked file upload

In this approach, you can use JavaScript libraries like Dropzone.js or Fine Uploader to handle the client-side chunking and upload. On the server-side, you can receive each chunk and save it to a temporary location. Once all the chunks are uploaded, you can combine them to recreate the original file.

Approach 2: Streaming File Upload

Another approach to handle large file uploads is by using streaming. Instead of reading the entire file into memory, you can read and process the file in smaller chunks. This approach is useful when you need to perform some on the file while it is being uploaded.

// Example code for streaming file upload

In this approach, you can use the HttpPostedFileBase.InputStream to read the file in chunks. You can then process each chunk as it is being read and save it to the desired location. This approach is memory- and allows for better scalability when dealing with large files.

Approach 3: External Storage

When dealing with extremely large files, it may not be feasible to store them directly on the server. In such cases, you can consider using external storage solutions like Amazon S3 or Azure Blob Storage. These services provide and storage options for large files.

// Example code for uploading file to external storage

In this approach, you can use the respective SDKs or APIs provided by the external storage service to upload the file. You can then store the file URL or key in your database for future retrieval. This approach offloads the storage and bandwidth requirements from your server and provides a more efficient solution for handling large file uploads.


Uploading large files in ASP.NET using C# careful consideration and implementation. By using approaches like chunked file upload, streaming file upload, or external storage, you can overcome the challenges associated with handling large files. the approach that best suits your requirements and ensure proper error handling and validation to provide a seamless file upload for your users.

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