Meshtastic

An open-source, off-grid communication platform that uses inexpensive LoRa radios to create long-range mesh networks, no internet or cellular service required.

What is Meshtastic?

Meshtastic is an open-source mesh networking platform where every device participates in relaying messages. By default, each radio acts as a CLIENT that actively rebroadcasts messages it receives, creating an ad-hoc network that works without any fixed infrastructure.

It uses inexpensive LoRa radio transceivers to create long-range data networks that work entirely off-grid, no internet or cellular service required. Meshtastic is ideal for roaming groups, mapping, and rich telemetry, with minimal setup and no required infrastructure.

How It Works

Every device rebroadcasts messages by default, forming a “managed flood” network
Direct messages use next-hop routing for efficiency
Default hop limit of 3 (max 7) keeps the network manageable
Encrypted messaging, GPS location sharing, and telemetry built in
Open-source software and hardware with a large community
Low power consumption for extended battery life

Best For

Hiking and outdoor adventures where everyone carries a radio
Emergency communications with minimal setup
Mapping and GPS tracking across a group
Community networks that grow organically
IoT and sensor applications

Considering MeshCore as well? Read the full Meshtastic vs MeshCore comparison on AustinMesh to understand the differences, or check out the MeshCore page.