Download OnAir

Free and open source. Pick the file for your system on the GitHub release page, current version 0.2.4. Nothing to compile.

Latest release on GitHub

macOSmacOS 15+

Open the .dmg and drag OnAir to Applications.

OnAir-…-macos-arm64.dmg for Apple silicon
OnAir-…-macos-x86_64.dmg for Intel (needs AVX2, 2013 or newer)
Not signed with a developer certificate yet: on first launch right-click OnAir and choose Open

Download for macOS

Windows10 / 11 · 64-bit

Run the installer, or unpack the zip and start OnAir.exe.

OnAir-…-windows-x64-setup.exe or …-windows-x64.zip
Needs a CPU with AVX2 (about 2013 or newer)
The installer is not code-signed, so Windows may warn about an unknown publisher
HackRF, RTL-SDR, Airspy: install the WinUSB driver once with Zadig

Download for Windows

Linuxx86-64 · arm64

Debian and Ubuntu: install the .deb. Others: unpack the portable archive.

sudo apt install ./onair_<version>_<arch>.deb
The .deb carries its own video decoder, no system FFmpeg needed
Other distributions: unpack the portable tar.gz and run bin/onair

Download for Linux

OnAir is free and has no ads. If it is useful to you, you can support its development on Ko-fi.

Support on Ko-fi

First run

Connect your radio and antenna, then start OnAir. Connected radios appear in the source menu.
Pick what you want to receive in the mode list on the left.
Enter a frequency, or open the Scan tab to find channels.
Press Start. When the receiver locks, click a channel to watch or listen.

No radio yet? Press Tour for a walkthrough on a built-in demo signal. More in the getting started guide.

Updates

OnAir checks GitHub for a new version a few seconds after it starts (then at most once a day), downloads the package in the background, verifies it against the SHA-256 GitHub lists and installs it when you close the program. Only github.com is contacted. The version button at the top right holds the settings.

Development version

New features land on the main branch first. To try them, build from source. The development version is not tested like a release; use the release for everyday work.