# jopohl/urh

Universal Radio Hacker: Investigate Wireless Protocols Like A Boss

Repository: https://github.com/jopohl/urh
Canonical: https://ross.abutalabs.com/products/urh
Language: Python
License: GPL-3.0
License Family: copyleft
Topics: security, wireless, iot, hacking, hackrf, rtl-sdr, limesdr, usrp, sdrplay, airspy, qt, python, bladerf, radio, sdr
Archived: true
Last push: 2025-12-19T14:25:58+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 58, release rhythm 30, longevity 100
- inputs: {"age_days": 3806, "days_push": 257, "days_rel": 259, "gap_med": 400, "n_releases_24m": 2}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 12569, forks 1043 (observed 2026-08-28T04:10:59.346513+00:00)

## What it is
Universal Radio Hacker (URH) is a complete open-source suite for investigating wireless protocols, with native support for many common Software Defined Radios. It provides automatic modulation parameter detection, customizable decodings, protocol field inference, a fuzzing component, and a simulation environment for stateful attacks.

## Use cases
- reverse-engineer wireless protocols from captured RF signals
- demodulate and decode signals from an SDR like HackRF or RTL-SDR
- fuzz stateless IoT wireless protocols
- simulate stateful attacks against wireless devices
- automatically infer protocol fields from recorded messages
- crack custom encodings like CC1101 data whitening
- analyze and replay RF communications of smart home devices

## When to choose
- you need a GUI-based tool to capture, analyze, and replay wireless signals with an SDR
- you want automated modulation detection and protocol field inference during RF reverse-engineering
- you are doing IoT or embedded security research on proprietary wireless protocols

## When to avoid
- you only need Wi-Fi or Bluetooth analysis, which dedicated tools handle better
- you need a headless CLI-only signal processing pipeline
- you require real-time signal monitoring at high bandwidths beyond URH's analysis focus

## Facets
- artifact type: application
- maturity: active
- function: security, reverse-engineering, penetration-testing, fuzzing, simulation, gui
- domain: security, iot, reverse-engineering, hardware
- platform: windows, python, cross-platform
- tags: sdr, software-defined-radio, wireless-protocols, signal-analysis, hackrf, rtl-sdr, protocol-reverse-engineering, demodulation, qt, wireless, linux, macos

## Member repositories
- jopohl/urh (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:59.346513+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 2026-08-29T17:13:57.496752+00:00, confidence not recorded.
  - readme: https://github.com/jopohl/urh (fetched 2026-08-28T04:10:59.346513+00:00, sha 365ed71a5ec9)
  - registry_pypi: https://pypi.org/pypi/urh/json (fetched 2026-08-29T08:10:27.677658+00:00, sha 7d0bd1a3a0a6)
- Data as of 2026-08-30T08:39:29.467469+00:00.