Rubber duck debugging
Code debugging method
Why this is trending
Interest in “Rubber duck debugging” spiked on Wikipedia on 2026-02-25.
Categorised under Technology, this article fits a familiar pattern. wt.cat.technology.2
At GlyphSignal we surface these trending signals every day—transforming Wikipedia’s vast pageview data into actionable insights about global curiosity.
Key Takeaways
- Rubber duck debugging (or rubberducking ) is a debugging technique in software engineering, wherein a programmer explains their code, step by step, in natural language—either aloud or in writing—to reveal mistakes and misunderstandings.
- It tells a story of a developer who carried a rubber duck and explained their code to it line by line.
- Approach Programmers often discover solutions while explaining a problem to someone else, even to people with no programming knowledge.
- Explaining a subject also forces the programmer to look at it from new perspectives and can provide a deeper understanding.
- This approach has been taught in computer science and software engineering courses.
Rubber duck debugging (or rubberducking) is a debugging technique in software engineering, wherein a programmer explains their code, step by step, in natural language—either aloud or in writing—to reveal mistakes and misunderstandings.
The name is a reference to a story in the book The Pragmatic Programmer. It tells a story of a developer who carried a rubber duck and explained their code to it line by line. Variations of the practice use other objects or even pets; teddy bears are especially common.
Approach
Programmers often discover solutions while explaining a problem to someone else, even to people with no programming knowledge. Describing the code, and comparing to what it actually does, exposes inconsistencies. Explaining a subject also forces the programmer to look at it from new perspectives and can provide a deeper understanding.
The programmer explaining their solution to an inanimate object (such as a rubber duck) has the advantage of not requiring another human, but also works better than thinking aloud without an audience. This approach has been taught in computer science and software engineering courses.
In popular culture
On 1 April 2018, Stack Overflow launched an April Fools' Day joke called Quack Overflow. A rubber duck avatar appeared in the bottom right corner of the screen, listened to user problems, and pretended to type solutions, only to respond with a simple "quack" sound. It referenced rubber ducking as a powerful method for solving problems.
Content sourced from Wikipedia under CC BY-SA 4.0
