DD-WRT

DD-WRT is a Linux based alternative OpenSource firmware suitable for a great variety of WLAN routers and embedded systems.

Free Open Source Mac OS X Windows Linux

OpenWrt

OpenWRT ( open - wireless receiver transmitter ) is a niche Linux distribution mainly installed on embedded devices, e.g. residential gateways.

Free Open Source Linux

pfSense

pfsense is a free, open source customized distribution of freebsd tailored for use as a firewall, and router.

Free Open Source BSD

Tomato

Tomato is a small, lean and simple replacement firmware for Linksys' WRT54G/GL/GS, Buffalo WHR-G54S/WHR-HP-G54 and other Broadcom-based routers.

Free Mac OS X Windows Linux

LEDE - Linux Embedded Development Environment

OpenWrt fork with open governance model to encourage development for embedded such as SOHO routers and non-network devices.

Free Open Source Mac OS X Windows Linux Android Android Tablet Chrome OS Self-Hosted OpenWrt

LibreMesh

LibreMesh is a set of modules extending the OpenWrt router distribution to create self-configuring wireless and wired mesh networks. By default it uses ad-hoc wifi networking and batman-adv, BMX as the routing daemons.

Free Linux OpenWrt LEDE - Linux Embedded Development Environment

Tomato by Shibby

TomatoUSB fork. - Torrent client integration (Transmission) with user-friendly GUI for configuration. - NFS server integration - Support for USB 3G modems (thx @LDevil) - Support MultiWAN.

Free Open Source Linux Tomato

VyOS

vyos is a community fork of vyatta , a linux-based network operating system that provides software-based network routing, firewall, and vpn functionality.

Free Open Source Linux

Quagga

Quagga is a network routing software suite providing implementations of Open Shortest Path First (OSPF), Routing Information Protocol (RIP), Border Gateway Protocol (BGP) and IS-IS for Unix-like platforms, particularly Linux, Solaris...

Free Open Source Linux BSD

AdvancedTomato

A router's graphical user interface is the most important part of the system because most users are unable or unwilling to configure a router by any other means.

Free Open Source Linux Tomato by Shibby

TomatoUSB

Tomato USB is an alternative Linux-based firmware for powering Broadcom-based ethernet routers. It is a modification of the famous Tomato firmware, with additional...

Free Open Source Linux Tomato

OpenWISP

OpenWISP is a software platform that can be used to implement a complete public wifi service. The suite includes applications derived from tools used to offer public...

Free Open Source Linux Self-Hosted

libreCMC

Now merged with LibreWRT, libreCMC is the libre Embedded GNU/Linux Distro. libreCMC is a set of fully free embedded Operating Systems for general purpose computers.

Free Linux

Cisco IOS

Cisco IOS is a family of software used on most Cisco Systems routers and current Cisco network switches.

Commercial Self-Hosted GNS3 Dynamips

OpenContrail

OpenContrail is an Apache 2.

Free Open Source Linux Self-Hosted

Junos OS

Junos OS is the FreeBSD-based operating system used in Juniper Networks hardware routers. It is an operating system that is used in Juniper's routing, switching and...

Commercial Self-Hosted VirtualBox VMware Workstation VMware Player GNS3