StorageSecurityUploads
File Upload and Storage Best Practices
User uploads introduce security and cost risks. Follow these patterns for safe, scalable file handling in web apps.
Nexaura Labs Team
Never trust client-side file validation alone. Scan types, enforce size limits, and store files outside your application servers.
Use direct-to-storage uploads
Signed URLs let clients upload to S3 or Cloudinary without routing large files through your API servers.
Control access with policies
Private assets need signed download URLs. Public assets should still be served through CDNs with cache headers.