# gnuradio/gnuradio

GNU Radio – the Free and Open Software Radio Ecosystem

Repository: https://github.com/gnuradio/gnuradio
Canonical: https://ross.abutalabs.com/products/gnuradio
Homepage: https://gnuradio.org
Language: C++
License: GPL-3.0
License Family: copyleft
Topics: sdr, dsp, wireless, cybersecurity, c-plus-plus, python, gnu, radio, gnuradio, flowgraph
Last push: 2026-08-26T17:16:08+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 8, longevity 100
- inputs: {"age_days": 5369, "days_push": 7, "days_rel": 560, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6236, forks 2152 (observed 2026-08-28T04:09:40.812440+00:00)

## What it is
GNU Radio is a free and open-source signal processing runtime and development toolkit for building software-defined radios and simulating wireless communications. It provides a library of signal processing blocks that can be connected into flowgraphs, usable with low-cost RF hardware or entirely in simulation.

## Use cases
- build a software-defined radio receiver in software
- simulate wireless communication systems
- decode radio signals from cheap RF hardware
- learn digital signal processing with hands-on flowgraphs
- prototype digital communications research
- do radio astronomy or physics signal processing
- analyze and reverse-engineer wireless protocols

## When to choose
- you need a mature, well-documented SDR and DSP toolkit with a large community
- you want to prototype radio systems without writing low-level DSP code
- you work across Linux, macOS, or Windows with common SDR hardware
- you need both real-time radio operation and offline simulation

## When to avoid
- you need a simple turnkey radio application rather than a development toolkit
- your project requires the newest 4.0 architecture, which is still under active development in a separate repo
- you need a lightweight pure-Python DSP library without C++ dependencies

## Facets
- artifact type: framework
- maturity: stable
- function: simulation, audio-processing, machine-learning, developer-tools, gui
- domain: embedded-systems, hardware, security
- platform: windows, cross-platform, python, cpp
- tags: sdr, dsp, software-defined-radio, flowgraph, wireless, signal-processing, rf, radio, gnuradio-companion, research, linux, macos

## Member repositories
- gnuradio/gnuradio (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:40.812440+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:47:11.950700+00:00, confidence not recorded.
  - readme: https://github.com/gnuradio/gnuradio (fetched 2026-08-28T04:09:40.812440+00:00, sha 29e199f13be3)
  - homepage: https://gnuradio.org (fetched 2026-08-29T08:43:35.420361+00:00, sha 4acb5da27b89)
  - site_page: https://www.gnuradio.org/about (fetched 2026-08-29T08:43:35.429954+00:00, sha bc65e6b720fb)
- Data as of 2026-08-30T08:39:29.467469+00:00.