Join a community Wi-Fi mesh

A community Wi-Fi mesh is a network built and run by its members that can provide them with internet access. Unlike a LoRa mesh, it carries real internet traffic. The catch is geography: these networks exist where enough people have organised one.

Where these networks exist

We found no UK Wi-Fi community mesh group in our research. If you live outside these areas, the honest answer is that you would be founding a network. Find a local mesh shows how to check, and which mesh is right for you suggests alternatives. For why a Wi-Fi mesh differs from a LoRa one, see LoRa vs Wi-Fi mesh.

The general pattern

1. Check coverage. Use the network's map to see whether existing nodes are near you. NYC Mesh publishes one at map.nycmesh.net.
2. Read the group's own documentation. NYC Mesh has a wiki, Freifunk communities have their own sites, and Guifi.net has a foundation page. Each describes who may join and how.
3. Request a connection. NYC Mesh sends new members to forms.nycmesh.net/join. We could not read that form with our tools, so we cannot list its fields. In general, rooftop networks need to know where you are so they can check whether a clear path exists to an existing node.
4. Wait for a survey or install slot. Volunteers organise installs. We have no sourced waiting times.
5. Install. Typically an antenna on a roof or window, plus a cable to a router inside.
6. Contribute. These networks run on donations, volunteer time and, in some cases, being willing to host a node for others.

NYC Mesh

NYC Mesh is a volunteer-run, community-owned network with rooftop installs, plus fibre to some whole buildings. It describes itself as a neutral network that does not monitor, collect, store or block user data or content.

• Cost. The suggested donation for a professional install is based on $240 average equipment and $50 install-leader expenses; subsidised options and monthly donation tiers ($20, $30 and $50) are listed on the pay page. Search results indicate they will connect people who cannot pay, but we did not fetch the page that says so. Check the current figures on their site.
• Technology. Wikipedia says directional antennas serve hub uplinks and omnidirectional antennas serve local access, and that one node can serve up to four apartments. NYC Mesh's wiki says BGP connects the internal network to the Internet, while OSPF carries internal traffic from supernodes to hubs to rooftops. We could not confirm the specific router and antenna models; ask the group.
• Chat. Slack at slack.nycmesh.net.
• Governance. Nonprofit, with a Network Commons License setting out four principles: freedom to use, transparency, service autonomy and an obligation to extend the network.

Freifunk

Freifunk is a German decentralised movement of local communities sharing Wi-Fi. Communities are independent, so rules vary.

• Firmware. Gluon is a modular framework for OpenWrt-based firmware for mesh nodes, with batman-adv support. It requires a site configuration, which means each community builds its own images. Flash the image your community publishes, not a generic one.
• Image types. Gluon documents "factory" images for flashing from stock firmware and "sysupgrade" images for upgrading a router that already runs Gluon or OpenWrt. The ath79-generic target is the most common. Choose the file that matches your exact router model and revision.
• Cost. Typically a cheap consumer router. We have no sourced price. There is generally no membership fee, though this varies by group.
• Internet access. Most communities tunnel traffic through VPN gateways, so throughput is bounded by gateway capacity. Historically, German liability rules for open Wi-Fi (Störerhaftung) pushed communities to route traffic through gateways abroad; liability was narrowed between 2016 and 2018 according to Wikipedia.
• Peering etiquette. The Pico Peering Agreement, which many communities follow, commits participants to free transit and to not modifying data.
• Finding your community. The Freifunk community directory lists 375 communities as of 2026-10-29. The main site is freifunk.net. The forum at forum.freifunk.net is in German.

Guifi.net

Guifi.net is a Catalan telecom commons: participants build their own infrastructure under an open licence (Wikipedia calls it the Wireless Commons License). Participants buy their own equipment, and member associations and companies sell access at reduced rates. We found no flat joining fee.

A 2014 Freifunk Google Summer of Code report that we saw only in search results describes a backbone of supernodes running dynamic routing, with client routers in an access layer. That is dated and unconfirmed; ask the foundation how it works today. The Fundació Guifi.net lists [email protected] as its contact. We could not verify a working public map or join page on guifi.net.

What hardware?

Only what we can source:

• Freifunk: a router supported by Gluon, flashed with your community's image.
• NYC Mesh: directional and omnidirectional antennas; the suggested donation is based on average equipment cost plus install expenses.
• Guifi.net: your own equipment, which participants buy themselves.

We could not confirm specific brand lists for NYC Mesh or Guifi.net, so we name none. Antenna siting rules in antenna placement apply here too, although Wi-Fi bands (2.4 and 5 GHz) are much less forgiving of obstacles than 868 MHz.

If there is no network near you

You would be founding one. That means building an upstream connection, a technical team, funding and trust. Starting points we found:

• Wireless Networking in the Developing World, a free book on low-cost wireless networks.
• LibreMesh, a modular firmware framework for OpenWrt mesh nodes, supported by AlterMundi, Freifunk, Guifi and Ninux.
• Gluon, as above.
• A LoRa mesh is a lower-effort alternative, because it needs no licence and no upstream (though it cannot carry internet traffic). Zero-hardware start is a gentle way in.

Legal notes