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12 Best Load Balancing Software in 2021

What is load balancing software?

Load balancing software is an enterprise system that helps in efficiently distributing your network traffic over cloud. Load balancer software works towards distributing the data load across multiple cloud environment. This minimizes your dependency on a single server and reduces the risk of losing

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NGINX Plus is the only cloud-native solution, which combines the features for content caching, security controls, load... Read More About NGINX Plus
Single sign-on API Authentication DDoS Mitigation +21 More
AWS Elastic Load Balancing

Distribute network traffic to improve the scalability of your applications

AWS Elastic Load Balancing is an online solution, which automatically disseminates incoming traffic for an application... Read More About AWS Elastic Load Balancing
High availability assurance Health Checks & Monitoring Content-Based Routing +6 More
Microsoft Azure Traffic Manager
Microsoft Azure Traffic Manager is an efficient load balancing software that can compress data and save spaces. This loa... Read More About Microsoft Azure Traffic Manager
Performance Monitoring Network Traffic & Bandwidth Monitoring Data Compression +4 More
Microsoft Azure Application Gateway
Microsoft Azure Application Gateway is a complete Load Balancing Software designed to serve Startups, SMBs, SMEs and Age... Read More About Microsoft Azure Application Gateway

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Web Werks Load Balancing
Web Werks Load Balancing is a complete Load Balancing Software designed to serve Startups, SMBs, SMEs and Agencies. This... Read More About Web Werks Load Balancing
No Service Downtime Multi Geography Zones Managed Services +2 More
Radware Alteon

Radware Alteon

By Radware

(2 reviews)


Alteon is Radware’s next-generation application delivery controller (ADC) and the only load balancer that guarantees a... Read More About Radware Alteon
SLA Assurance Performance Monitoring Web Performance Optimization +4 More
KEMP Load Balancer

KEMP Load Balancer

By KEMP Tech


KEMP Load Balancer is a load balancing software which is optimized and certified for Microsoft workloads. It is a cloud... Read More About KEMP Load Balancer
Collaboration Data Compression Health Monitoring +3 More
Cedexis Openmix

Cedexis Openmix

By Cedexis


Cedexis Openmix is one of the best load balancing software that offers real-time load balancing and compresses data to m... Read More About Cedexis Openmix
Load Balancing Data Compression Content Routing +3 More

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Citrix ADC

Citrix ADC

By Citrix Systems


Citrix ADC is a load balancing software which provides proven L4-7 load balancing and global server load balancing (GSLB... Read More About Citrix ADC
Flexibility & scalability Redundancy Checking Health Monitoring +3 More
Imperva Incapsula

Imperva Incapsula

By imperva


Imperva Incapsula is a complete Load Balancing Software designed to serve Startups, SMBs, SMEs and Agencies. This Load B... Read More About Imperva Incapsula
Health Management Content Management 24/6 Technical Support +1 More
NGINX Plus Load Balancer
NGINX Plus Load Balancer is a high-performance tool, enabling users to scale out and offer redundancy, session persiste... Read More About NGINX Plus Load Balancer
Authentication Content Cache High availability assurance +8 More
NGINX Instance Manger
NGINX Instance Manager is used by organizations to ensure timely security upgrades and configurations of their NGINX P... Read More About NGINX Instance Manger
Discover and Secure NGINX Instances Manage Configurations Monitor Your NGINX Footprint +1 More

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Last Updated on : 21 Oct, 2021

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Buyer's Guide for Top Load Balancing Software

Found our list of Load Balancing Software helpful? We’re here to help you make the right choice and automate your business processes. Let’s discover some of the essential factors that you must consider to make a smarter decision!

What is load balancing software?

Load balancing software is an enterprise system that helps in efficiently distributing your network traffic over cloud. Load balancer software works towards distributing the data load across multiple cloud environment. This minimizes your dependency on a single server and reduces the risk of losing your data from server failure and cyber-attacks. 

Load balancer software receives the data traffic from different sources and distributes it across data servers. Load balancing software also acts as a reverse proxy that retrieves data from servers and redirects it to the clients. Most of the popular load balancer software provides features for network traffic analysis, network configuration management, switch port and IP address management, remote network management, and firewall log management. 

How to choose a load balancing software?

Whenever planning to buy a software-based load balancer, consider these six focus points that can help you choose the right one:

  • Identify immediate & long term needs: Choosing a load balancer that optimizes traffic distribution to reduce server load is often the immediate need of any business. Whereas increasing performance, reducing single point of failures is a long term requirement. Other factors to be considered are whether your data needs encryption and the kind of security implications.
  • Calculate the anticipated load: Organizations today are using internet load balancer software to meet their data traffic targets. Meanwhile, some companies are overspending their resources on buying data space they don’t need. On the other hand, some firms under-buy space, which makes them to quickly outgrow of the solution they had once chosen. Therefore, to avoid a situation like that, you should invest in an internet load balancer software that helps scale up and down with the changing traffic.
  • High availability: The best load balancer software helps in reducing server load to maximize data flow. There are some companies which ignore business viability and only focus on minimizing server utilization, which doesn’t help the business. That's why, it is important that you invest in a load balancer software that offer high availability of data storage without using extra space.
  • Security concerns: With load balancing software, as your ability to handle more traffic increases, the risk of inviting cyber threats also increases. It is important that you choose a load balancer that gives high priority to data security.
  • Return on investment: While evaluating ROI (return on investment) of a load balancer, compare the value of lost business against the worth that load balancer brings, which includes cost of deployment, downtime estimation, etc.
  • Total cost of ownership: To calculate the total cost of ownership (TCO), decision makers shouldn't just consider the initial deployment cost. The ongoing expenditure and various other spendings like service contracts and software upgrades should also be taken into consideration.

10 Best Load Balancer Software Comparison

  • NGINX Plus: NGINX Plus is a cloud‑based load balancing software that enables advanced monitoring and strengthens security controls. The load balancing software helps in scalability and supports debugging and the diagnosis complex application architectures.
    • Platform support: It’s a load balancing software for Mac OS, for Linux, Windows, and Web-based application.
  •  Avi load balancer: Avi load balancer can draw traffic very fast. It is highly scalable and can ensure fast and secure application experience. The software load balancer can do 0 to 1 million SSL transactions per second. 
    • Platform support: It’s a load balancing software for Mac OS, for Windows, Linux, and Web-based application.
  • HAProxy: This internet load balancer software is an open source proxy solution that uses Linux, Solaris, and Windows FreeBSD platforms. Its fast and reliable cloud monitoring system powers a few high traffic driven websites in the world. The system translates your messages over Syslog Protocol on UDP and TCP. Moreover, HAProxy helps improve cache.
    • Platform support: Load balancing software for Linux, Solaris, FreeBSD, OpenBSD, AIX
  • Kemp LoadMaster: As a high performance virtual load balancing system, Kemp LoadMaster features server and application health monitoring, data compression and caching, automation-enabled API, TCP multiplexing and more.
    • Platform support: Load balancer for Linux & Unix
  • Loadbalancer.org: The load balancing software protects your clients against any possible security disruption and lets you focus on building business. It enables you to run applications at Zero downtime rate and provides solutions that will help scale up your business.
    • Platform support:  Load balancing software for Windows 10 and Linux system
  • ManageEngine OpManager: ManageEngine OpManager monitors wireless LAN controllers, firewalls, load balancers, servers, routers, storage devices, and every other device that has an IP address and is connected to the network. The best load balancer software for Windows 10/8/7, has a user friendly, affordable internet load balancer solution.
    • Platform support: Load balancing software for Windows 10 and Linux servers
  • Citrix ADC: A cloud-traffic controller, Citrix ADC analyses data traffic for intelligent optimization. The data distribution system is available as software and hardware tool that features single and multi-tenant devices. 
    • Platform support: The system works best for web applications
  • Barracuda Load Balancer ADC: A software based load balancer, Barracuda ADC minimizes traffic congestion and provides protection from a list of system intrusions and cyber-attacks. It has a reputation of blocking more than 11 billion real-world attacks. The software offers advanced Layer 4 and Layer 7 load balancing. 
    • Platform support: Load balancing software for Windows and Linux based system.
  • Incapsula: Incapsula’s cloud based application guards any website against illegal resource access, cross site scripting, sophisticated SQL injections, and other OWASP top 10 threats. 
    • Platform support: Load balancer for Windows, load balancing software Mac, and Linux platforms
  • Total Uptime Cloud Load Balancer: Choose the type of IP source, and SSL sessions with Total Uptime Cloud Load Balancer, and distribute your traffic based on the lowest response time, least bandwidth, least connections, closest proximity and more. This software based load balancer also supports the failover or disaster recovery.
    • Platform support: Cloud environments

Key Benefits of Software Based Load Balancer Software

  • Programmability: Load balancer system should be programmable, so that it can be tweaked and changes can be made accordingly. Programmability allows you to run your own checks over the system to determine system efficiency. For example, checking if the application is running smoothly or how much time it is taking etc. With programmability, you can always customize these things.
  • Scalability: Load balancing software should be scalable in nature, so that it can handle a large volume of traffic in real time. Scalability is a key feature for software-based load balancer, Scaling up of hardware based load balancer is always challenging after a certain point due to physical limitation of hardware devices.
  • Reduced cost: Using cloud based load balancers, you can distribute data traffic across various servers, at a reduced price without buying any hardware devices. Also, there are different cloud based load balancer service providers who offer a low-cost platform for testing different applications.
  • Application security: Data and application security is a key feature for load balancing software across all operating systems. Security is integral to the cloud ecosystem, because it sits between the client and the server. Without having extra layers of protection, it runs the risk of causing threat to both the client and the server.
  • Deploy on demand: A major advantage of software based load balancers is that it can be deployed on client demand. It is a key feature as it helps upscale with your current data requirement.

Types of Load Balancer Software

  • Hardware based load balancer: These are hardware devices that are designed to operate on an operating system that distributes data traffic over a cluster of application servers. To have the maximum performance out of these systems, operators keep customizing data traffic rules so that application servers are not overwhelmed.
  • Cloud based load balancer: Cloud based load balancing refers to allocating client’s data over cloud so that so you can minimize the server utilization without compromising on the data. With cloud load balancer, you can maximize a program’s performance and easily scale up or scale down your system to match your business requirements.
  • Software based load balancer: It is a clever technique wherein administrators route data traffic to different servers. With load balancing software, you can evaluate a client’s data requirement by examining application-level characteristics such as content of request, IP address, and HTTP header. Based on its findings, the load balancer application runs a check on the servers and assign the data.

FAQ iconLoad Balancing Software FAQs

  • HAProxy
  • Kemp LoadMaster
  • Loadbalancer.org
  • Citrix ADC

Software load balancers stretch up the data distribution capabilities of a system so that it uses the available servers in the most efficient way. This quantum changes the entire system, as load balancing minimizes data congestion as the required workloads don’t get hung up because of an overloaded server, when other servers are already sitting idle.

For someone that is looking for maximizing their data application performance, and reliability in server space utilization, they should opt for load balancing application as a service. This will provide you with low cost load balancing service that can be scaled up or down to suit client and service provider’s business requirements. 

  • HAProxy,
  • Kemp LoadMaster,
  • Loadbalancer.org,
  • ManageEngine OpManager, and
  • Barracuda Load Balancer ADC

You can use the load balancer software to run load tests and evaluate load-balanced servers’ performance under load. This is a great way to test if the server(s) you are allocating to store the client’s data can take the load without causing much trouble or not.

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