GNU Radio
Hacker ApprovedSdr framework in Developer tools
Builds working signal flow graphs for radio and audio processing. Critics find it hard to learn and the GUI cumbersome.
Builds working signal flow graphs for radio and audio processing. Critics find it hard to learn and the GUI cumbersome.
16 people gave an opinion
- recommend it
- 11
- criticize it
- 5
- approval share
- 69%
Recommended in 6 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: recommended
- February 2026: recommended
- March 2026: not recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: recommended
- July 2026: recommended
- August 2026: not recommended
- September 2026: recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it carries the badge
- 11 people recommend itNeeds 10 or more, met.
- 2.2 recommenders for every criticNeeds 2 to 1 or better, met.
- Recommended in 6 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Builds working pipelines from flow graphs
“I too found it historically impenetrable, but was able to get a pipeline completed.”
Comment from 9 Sep 2026 in “GNU Radio in the browser” “It's pretty cool to build a signal flow graph, then have it just work”
Comment from 16 Jan 2026 in “Ask HN: What are your best purchases under $100?” Impressive, well-regarded software
“super impressive piece of software by the way”
Comment from 7 Feb 2026 in “Stories from 25 Years of Software Development” “which is amazing piece of software by the way”
Comment from 23 Oct 2026 in “Time Nuts (2005)”
What people warn about
Each mark is one comment
GUI is cumbersome or limiting
“The GUI as you said was too cumbersome.”
Comment from 9 Sep 2026 in “GNU Radio in the browser” “too GUI to scratch my programming itch but too low-level to be useful for exploration”
Comment from 9 Sep 2026 in “GNU Radio in the browser” Opaque and hard to learn
“I too found it historically impenetrable, but was able to get a pipeline completed.”
Comment from 9 Sep 2026 in “GNU Radio in the browser” “found it so opaque as to be unusuable”
Comment from 9 Sep 2026 in “GNU Radio in the browser”
What people said
15 of the 18 comments that mention it, newest first. Each links to the original comment.
“which is amazing piece of software by the way”
“That's certainly handy... here's a simple audio frequency shifter I threw together”
“A lot of GNU Radio's code is a monster unification of so many different choices”
“The GUI is pretty nice to interact with.”
“I too found it historically impenetrable, but was able to get a pipeline completed.”
“The GUI as you said was too cumbersome.”
“it works, screen is a bit harder to navigate on small screens but not an issue”
“too GUI to scratch my programming itch but too low-level to be useful for exploration”
“found it so opaque as to be unusuable”
“ala gnuradio but actually usable in production”
“GNU Radio seems perfectly fine.”
“Tons of cognitive radio applications”
“super impressive piece of software by the way”
“they show how to process IQ data or raw audio streams directly”
“It's pretty cool to build a signal flow graph, then have it just work”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.