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Why We Release Free, Open Source Tools

291 Group builds commercial RF and defence products. We also release a few free, open source tools. Here is why.

291 Group was founded by veterans, and giving back to the community has always mattered to us. Alongside our commercial products, we release free, open source tools that anyone can download, read and run.

Tools you can check for yourself

Network tools see a lot: your traffic, your devices, your habits. With open source, anyone can read exactly what our tools do, and what they don’t do. They run on your own machine, with no account and no cloud, so you never have to take our word for it.

Feedback from real networks

People run our tools on networks we will never see: home labs, small offices, NAS boxes and routers around the world. Their bug reports and feature requests make the tools better than we could on our own.

What we have released

  • LAN Orangutan finds every device on your network and keeps track of it.
  • LAN Sheriff shows what those devices send out to the internet, live, on a map.

Both are free. LAN Orangutan has passed 1,000 stars on GitHub and has been reviewed by independent writers, YouTubers and podcasts, and LAN Sheriff was voted Product of the Week on DevHunt.

What comes next

Two radio projects are next: SDR Bridge, the receiver software behind 291 SDR Mobile, and Yagi, our programming language for radio. Read about both in what is coming next.