GNS3

GNS3

GNS3 download for free to PC or mobile

GNS3 is a powerful, free software that allows you to create virtual networks without any hardware. Ideal for both beginners and professionals, GNS3 offers an intuitive interface to design and test your network projects risk-free. With GNS3, you can build networks of any size and complexity, ensuring they meet your specific needs. The software provides all necessary features to streamline your workflow, from adding network components to testing functionality. Whether you're a student or an experienced network engineer, GNS3 simplifies network development, enabling you to create dynamic network maps and solve problems efficiently. Start your network development journey with GNS3 and experience hassle-free, hardware-independent network design.

06 Jun 2024
Title GNS3
Size 99.9 MB
Price free of charge
Category Applications
Developer Galaxy Technologies, LLC
System Windows
99.9 MB
5
1047 reviews
3326
downloads
The content of games with a PEGI 3 rating is considered suitable for all age groups. The game should not contain any sounds or pictures that are likely to frighten young children. A very mild form of violence (in a comical context or a childlike setting) is acceptable. No bad language should be heard. Equivalent to E (low end) and EC (which is no longer used). 435 titles were rated PEGI 3 in 2020.
PEGI Rating

GNS3 installation

download

Click on the Download button to start downloading GNS3 for Windows from Maombi.com

open

Open the .exe installation file in the Downloads folder and double click it

props

Follow the instructions in the pop-up window to install GNS3 on Windows Desktop

run

Now you can open and run GNS3 on your PC

GNS3 Features

GNS3 is a powerful network simulation tool that allows you to design, test, and troubleshoot complex networks with ease. With a user-friendly interface, you can drag and drop virtual devices to create your network topology. GNS3 supports a wide range of network devices and vendors, making it a versatile tool for network engineers and IT professionals. You can run real operating systems and applications on your virtual network, making it a valuable resource for testing configurations and troubleshooting network issues. Whether you're a beginner or an expert, GNS3 is the perfect tool for building and testing your network designs.

Network Simulation

Simulate complex networks to practice configurations and test scenarios before deploying in production.

Virtualization

Create virtual machines and connect them to your network topology for testing and development purposes.

Packet Capture

Capture and analyze network traffic to troubleshoot issues and optimize performance.

Topology Design

Design custom network topologies with various devices and connections to meet specific requirements.

Collaboration

Share network topologies with colleagues or the community to collaborate on projects and receive feedback.

Integration

Integrate GNS3 with other tools and platforms to enhance functionality and streamline workflows.

GNS3 overview

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    01

    Experience seamless network simulation with this powerful application designed for professionals. Visualize complex topologies effortlessly, manage devices, and analyze configurations in real-time. The intuitive interface allows for easy navigation through various network setups, ensuring efficient troubleshooting and optimization. Enhance your skills and streamline your workflow with advanced features that cater to both beginners and experts alike. Transform your networking experience today!

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    02

    Experience seamless network management with this powerful application designed for advanced security professionals. Visualize complex network topologies effortlessly, monitor traffic in real-time, and analyze packet data with precision. Its intuitive interface allows for easy navigation through various protocols and devices, ensuring optimal performance and security. Enhance your operational efficiency and safeguard your infrastructure with cutting-edge tools tailored for comprehensive network analysis.

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    03

    Experience seamless network simulation with this innovative application designed for professionals. Visualize complex topologies effortlessly, featuring multiple routers and VLAN configurations. Monitor performance metrics in real-time, ensuring optimal connectivity. Ideal for training and testing, it empowers users to troubleshoot and refine network designs, enhancing skills in a dynamic environment. Unlock your potential in network management today.

GNS3 FAQ

Updates and reviews about GNS3

Build Your CCIE Lab with GNS3

06 Oct 2025

Build Your CCIE Lab with GNS3

Learn how to build a CCIE lab using GNS3 for effective network training and practice.

Read more
Adding Cisco Devices to Your Network Simulation Software

06 Oct 2025

Adding Cisco Devices to Your Network Simulation Software

Learn how to add Cisco devices to your network simulation software with this easy guide. Explore the benefits of using simulations in networking.

Read more
Router on a Stick Configuration in GNS3

06 Oct 2025

Router on a Stick Configuration in GNS3

Learn how to configure a router on a stick in GNS3 for effective VLAN communication. Start simulating today!

Read more
How to Connect Routers in GNS3

06 Oct 2025

How to Connect Routers in GNS3

Learn how to connect routers in GNS3 to enhance your network simulation skills. Start your journey with GNS3 today!

Read more
All GNS3 news and updates
GNS3

Download GNS3

GNS3 reviews

Update: 02 Jan 2026

ChrisTanner

GNS3 is phenomenal! I’m totally addicted to building my own labs. Learning has never been this much fun! The graphics are clear and seeing the virtual routers and switches come to life is just sooo cool! Love it!

MattPeters

I'm just so pumped about GNS3! I’ve tried other simulators, but nothing compares. The depth of simulation options here is insane, and the stability is top-notch! After using GNS3, I can’t imagine going back!

EmilySparks

OMG, GNS3 is a game changer! I can finally test my network setups without any hassle. It's like having a lab right in my own house! The interface is super intuitive, and I love how you can run multiple devices at once. Total lifesaver for my studies!

LauraBetts

GNS3 is the best thing since sliced bread! I’ve been able to simulate complex networks with ease, and the tools they provide are magnificent. I can’t stop raving about this to my friends. It’s just pure genius!

KevinBennett

I think GNS3 is a decent app! It’s awesome for experimenting with network setups, and I love that it’s free. However, the initial setup was a bit tedious for my liking, but once I got it running, I really liked it!

SarahCole

GNS3 has a solid setup! The ability to use actual IOS images and run complex topologies is a major plus. I especially love the integration with various devices. It’s been really effective for my studies. Only minor hiccups!

NinaAdams

GNS3 is a nice tool! I liked the ability to run virtual environments easily. The documentation could be improved, though; I found myself lost at times. Still, the overall experience has been enjoyable so far!

GraceHughes

GNS3 is not bad! I have mixed feelings; the platform is powerful, but I struggled with the cloud integration. There’s a great community, though, and I’m hopeful things will improve with more updates!

JakeHarrison

I can’t believe I didn’t find GNS3 sooner! It’s seriously fantastic for practicing networking skills. The community support is awesome, and the resources available are just out of this world. I’m learning soooo much faster now! Would def recommend to anyone!

KatieMoore

GNS3, you have my heart! I’ve learned so much about network design and troubleshooting thanks to you! The ability to run real IOS images is like having the real deal but cheaper! You legit rock!

JessicaBaker

GNS3 is great for practice! I enjoy the customizability and the community is super friendly. I’ve been able to learn so much, but sometimes it feels overwhelming with all the options. Still, I'm happy overall.

TomReed

I’m really loving GNS3! It’s an absolute treasure for networking enthusiasts! The labs I’ve created are mind blowing, and each session is a thrill. 10/10 would recommend! Perfect for those who love diving deep into tech!

SophieGregory

Wow, GNS3 blew my mind! I can finally visualize networking concepts! It's straightforward to set up, and every feature just works perfectly. I thought it was gonna be complicated, but it’s just so user-friendly! Best tool ever!

MarkSmith

Using GNS3 has been an exhilarating journey! I’m able to experiment with networking like never before. Each simulation feels like magic! The learning curve was there, but once I got the hang of it, wow! I’m absolutely thrilled!

OliverYoung

I feel a bit conflicted about GNS3. The potential is definitely there, and I love playing around with it. But I hit snags with the setup and found the learning process a bit draining. It’s good but could be better!

ChloeWard

GNS3 has potential! While I love the idea of simulating my networking scenarios, the learning curve was steeper than expected. Still, I appreciate the features and might stick around to see if it gets easier!

LilyAdams

GNS3 rocks! The first time I ran a simulation, I felt like a pro. The flexibility it gives you is just incredible! Plus, the community is super helpful! I’ve learned so much already and can’t wait to dive deeper! Such a joy to use!

EthanKelley

Okay, GNS3 is okay! Some aspects are fantastic, like the ability to use real images. Still, the crashes I experienced were annoying at times. I want to love it more than I do now. Hoping for improvements!

MichaelClark

Pretty satisfied with GNS3! The tool is powerful and allows for an incredible range of simulations. I do wish the interface was a bit cleaner, but once you get used to it, it’s pretty solid! Good for learning networking!

DavidTaylor

I’m very pleased with GNS3! Setting up labs is easy and intuitive, which makes learning fun. The tutorials online helped me get started quickly. I did notice some lag at times, but that’s more of a minor issue than anything!