How to Upload Files to Azure Blob Storage

📰 Medium · JavaScript

Learn how to upload files directly to Azure Blob Storage using JavaScript and a Shared Access Signature (SAS) URL, without needing a complex backend infrastructure.

intermediate Published 29 Apr 2026

Action Steps

Create an Azure Blob Storage account and generate a Shared Access Signature (SAS) URL
Set up an HTML page with a drag-and-drop file uploader
Use JavaScript to handle file uploads and send them to Azure Blob Storage using the SAS URL
Implement a live upload table to display all uploaded files
Test and deploy the file uploader to a production environment

Who Needs to Know This

This tutorial is beneficial for frontend developers and full-stack developers who want to integrate Azure Blob Storage into their web applications, allowing them to store and manage files in the cloud.

Key Insight

💡 Azure Blob Storage can be integrated into web applications using a Shared Access Signature (SAS) URL, allowing for direct file uploads from the client-side.