Deliver high availability and network performance to your applications
- Instantly add scale to your applications
- Load-balancing Internet and private network traffic
- Improve application reliability via health checks
- Flexible NAT rules for better security
- Directly integrated into virtual machines and cloud services
- Native IPv6 support
Simplify load balancing for applications
With built-in load balancing for cloud services and virtual machines, you can create highly available and scalable applications in minutes. Azure Load Balancer supports TCP/UDP-based protocols such as HTTP, HTTPS and SMTP, and protocols used for real-time voice and video messaging applications.
High availability and robust performance for your applications
Load Balancer automatically scales with increasing application traffic. Without you needing to reconfigure or manage the load balancer, your applications provide a better customer experience.
Internal load balancer
Use the internal load balancer for traffic between virtual machines inside your private virtual networks, or use it to create multi-tiered hybrid applications.
Build highly reliable applications
Load Balancer probes the health of your application instances, automatically takes unhealthy instances out of rotation and reinstates them when they become healthy again. Use Load Balancer to improve application uptime.
Secure your networks
Control your inbound and outbound network traffic and protect private networks using built-in network address translation (NAT). Secure your network and integrate network security groups with Load Balancer.
Expand your reach using IPv6
Load-balanced IPv6 Internet connectivity all the way to native IPv6 endpoints on your Azure virtual machines. Native dual-stack endpoints help to meet regulatory requirements and to address the fast-growing number of devices in mobile and IoT markets looking to connect to Azure-based services.
Why trust Load Balancer?
Microsoft invests more than USD 1 billion annually on cybersecurity research and development.
We employ more than 3,500 security experts completely dedicated to your data security and privacy.
Azure has more compliance certifications than any other cloud service provider. View the comprehensive list.
Load Balancer pricing
- No upfront cost
- No termination fees
Everything you need to get started
Documentation and resources
Related products and services
Provision private networks, optionally connect to on-premises data centres
Provision Windows and Linux virtual machines in seconds
Create highly available, infinitely scalable cloud applications and APIs
Load Balancer updates, blogs and announcements
Introducing Azure Load Balancer Insights using Azure Monitor for Networks
Azure Load Balancer support for IP-based backend pool management is in preview
25 June, 2020
Introducing Azure Load Balancer insights using Azure Monitor for Networks
Azure Load Balancer TCP resets on idle timeout is now available