---
name: "gnuradio-companion"
section: "1"
platform: "linux"
package: "gnuradio-companion"
version: "3.10.12.0-18"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/gnuradio-companion"
---

# gnuradio-companion(1)

GNU Radio Companion (GRC) is a graphical tool for creating GNU Radio signal flowgraphs.

## NAME

gnuradio-companion - GNU Radio Companion (GRC) is a graphical tool for creating GNU Radio signal flowgraphs.

## SYNOPSIS

**gnuradio-companion** \[*options*\] \[*flowgraphs*\]

## DESCRIPTION

GNU Radio is a free & open-source software development toolkit that provides signal processing blocks to implement software-defined radios and signal-processing systems. The GNU Radio applications themselves are generally known as "flowgraphs", which are a series of signal processing blocks connected together, thus describing a data flow.

**gnuradio-companion** is effectively a Python code-generation tool. When a flowgraph is "compiled" in GRC, it generates Python code that creates the desired GUI windows and widgets, and creates and connects the blocks in the flowgraph.

## OPTIONS

*flowgraphs* Invoke the program with one or more existing flowgraphs.

- **-h**, **--help**

  show a help message and exit.

- **--log**

  defines the level of logging output.

## SEE ALSO

https://wiki.gnuradio.org/index.php/GNURadioCompanion