# ha7ilm/openwebrx

Open source, multi-user SDR receiver software with a web interface

Repository: https://github.com/ha7ilm/openwebrx
Canonical: https://ross.abutalabs.com/products/openwebrx
Homepage: https://sdr.hu/openwebrx
Language: JavaScript
License: AGPL-3.0
License Family: copyleft
Topics: sdr, rtl-sdr, waterfall, html5, software-defined-radio
Archived: true
Last push: 2024-06-16T14:28:22+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4296, "days_push": 808, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1065, forks 590 (observed 2026-08-28T04:03:26.654615+00:00)

## What it is
OpenWebRX is a multi-user software-defined radio (SDR) receiver with a web interface, providing browser-based demodulation (AM/FM/SSB/CW/BPSK31), a waterfall display, and support for RTL-SDR, HackRF, SDRplay, and AirSpy devices. It uses HTML5 features like WebSocket and Web Audio API to stream compressed audio and waterfall data to multiple clients.

## Use cases
- share an SDR receiver over the web for multiple users
- listen to AM/FM/SSB/CW radio in a browser
- run a remote RTL-SDR receiver with waterfall display
- host a public web-based SDR receiver
- monitor radio spectrum remotely

## When to choose
- you want a browser-accessible multi-user SDR receiver
- you need waterfall display and demodulation over WebSocket
- you use RTL-SDR, HackRF, SDRplay, or AirSpy hardware

## When to avoid
- you need actively maintained software - development was discontinued in 2019
- you require Python 3 or security patches - it depends on Python 2.7
- you are building critical infrastructure
- consider the OpenWebRX+ fork instead

## Facets
- artifact type: application
- maturity: abandoned
- function: http-server, websocket, audio-processing, data-visualization, streaming, self-hosted
- domain: web-development, self-hosted
- platform: browser, python
- tags: sdr, software-defined-radio, rtl-sdr, waterfall-display, ham-radio, web-sdr, demodulation, html5, radio, real-time, linux, web-server, javascript

## Member repositories
- ha7ilm/openwebrx (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:26.654615+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 2026-08-30T06:55:29.804506+00:00, confidence not recorded.
  - readme: https://github.com/ha7ilm/openwebrx (fetched 2026-08-28T04:03:26.654615+00:00, sha 8c4215182a40)
- Data as of 2026-08-30T08:39:29.467469+00:00.