● Covered by 1 source · 1 reportLow impact1 neutral
GNU Radio Companion-style flowgraph editor and runtime now available in a browser
Key points
- GNU Radio DSP stack and Qt GUI sinks compiled to WebAssembly.
- Supports real-time spectrum, waterfall, and constellation plots.
- Reads and writes native .grc files.
- Connects to RTL-SDR, PlutoSDR, or HackRF via WebUSB.
Browser-Based SDR Development
A new GNU Radio Companion-style flowgraph editor and runtime is now available, operating entirely within a web browser tab. This allows users to develop and execute software-defined radio (SDR) flowgraphs without the need for traditional desktop installations.
Technical Implementation
The system utilizes WebAssembly for the GNU Radio DSP stack and Qt GUI sinks. This compilation enables the execution of complex signal processing tasks directly within the browser environment, eliminating dependencies on Python or server-side components.
Functionality and Compatibility
Users can build flowgraphs and view live spectrum, waterfall, and constellation plots. The browser-based tool is compatible with native GNU Radio .grc files, supporting both reading and writing. It also includes example flowgraphs and IQ recordings for immediate use.
The system can interface with hardware such as RTL-SDR, PlutoSDR, and HackRF devices through WebUSB, allowing for direct interaction with physical radio equipment from the browser.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
The daily brief
One email each morning: the day's tech stories, clustered across outlets and summarized. No account needed.
One email a day. Unsubscribe in one click, any time.
Today's brief
Spend a few minutes, get the whole day. Every topic's top stories in one hands-free rundown — listen, watch, or read the transcript.
▶ Play today's brief
New every morning, and the back catalogue is archived by date.
Primary sources
GitHub 777arc/gnuradio-worldReporting from
A browser-based GNU Radio Companion-style flowgraph editor and runtime has been released, allowing users to build and run software-defined radio flowgraphs directly in a web browser. This development enables real-time spectrum, waterfall, and constellation plots without requiring Python, local installation, or a server.