How do I upload some file into Azure blob storage without writing my own program?

Free tools:

1. Visual Studio 2010 -- install Azure tools and you can find the blobs in the Server Explorer
2. Cloud Berry Lab's CloudBerry Explorer for Azure Blob Storage
3. ClumpsyLeaf CloudXplorer
4. Azure Storage Explorer from CodePlex (try version 4 beta)

There was an old program called Azure Blob Explorer or something that no longer works with the new Azure SDK.

Out of these, I personally like CloudBerry Explorer the best.

The easiest way is to use Azure Storage PowerShell. It provided many commands to manage your storage container/blob/table/queue.

For your mentioned case, you could use Set-AzureStorageBlobContent which could upload a local file into azure storage as a block blob or page blob.

Set-AzureStorageBlobContent -Container containerName -File .\filename -Blob blobname

For details, please refer to http://msdn.microsoft.com/en-us/library/dn408487.aspx.

If you're looking for a tool to do so, may I suggest that you take a look at our tool Cloud Storage Studio (http://www.cerebrata.com/Products/CloudStorageStudio). It's a commercial tool for managing Windows Azure Storage and Hosted Service. You can also find a comprehensive list of Windows Azure Storage Management tools here: http://blogs.msdn.com/b/windowsazurestorage/archive/2010/04/17/windows-azure-storage-explorers.aspx

Hope this helps.