Which form is correct: "in detail" or "in details"?

I want to use it while describing an algorithm. First I give a general description of an algorithm and then more detailed description.

  • You can also compare it with "in summary" Commented Apr 29, 2018 at 2:49

2 Answers 2


I think

In detail

Is correct. Assuming that the context looks like this.

[After general description]

In detail, the algorithm will....

But you could always say..

Here, I describe the details of the algorithm.


"you describe the algorithm in detail" or "you describe the details of the algorithm".

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