How to remove unused imports in Intellij IDEA on commit?

Question

Is there a way to remove unused imports in Intellij IDEA on commit?

It is not very optimal to do it manually, CTRL + ALT + O helps but it's still manual.

@Wuaner you can disable it through `All Settings` => `Keyboards` => `Shortcuts` . By the way ctrl alt l is used to format the code in `Intellij` — Kasun Siyambalapitiya, Mar 07 '17 at 16:59

score 164 · Answer 1 · edited Sep 14 '17 at 07:24

164

If you are using IntelliJ IDEA or Android Studio:

Android optimize imports

Go to Settings > Editor > General >Auto Import and check the Optimize imports on the fly checkbox.

edited Sep 14 '17 at 07:24

Gangnus

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answered Jun 04 '15 at 03:25

Madan Sapkota

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I just tried and it does not remove unused imports (on IDEA 2017.2.4) – qwertzguy Oct 19 '17 at 23:56
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For me its Preferences > Editor > General > Auto Import, and check the "Optimize imports on the fly". It works. I'm using IntelliJ IDEA 2020.1.4 – Matilda Smeds Nov 11 '20 at 10:49

score 117 · Accepted Answer · answered Sep 25 '12 at 14:37

117

When you commit, tick the Optimize imports option on the right. This will become the default until you change it.

I prefer using the Reformat code option as well.

answered Sep 25 '12 at 14:37

Peter Lawrey

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You can also set the option for "Optimize imports on the fly", under the `Editor > Auto Import` section – matt b Sep 25 '12 at 14:41
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That is cool, but can drive you crazy if it imports the wrong class. – Peter Lawrey Sep 25 '12 at 14:43
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that is what the second option for "Add unambiguous imports on the fly" is for :) You can disable the first and only enable the unambiguous setting. – matt b Sep 25 '12 at 14:44
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True, but sometimes you use a class which is fine in one module but isn't in the dependencies of another and you end up including something under `com.sun.*` or `sun.*` – Peter Lawrey Sep 25 '12 at 14:47
Not sure if I follow what you mean, but both settings will only add imports for classes on the classpath. You can configure classes or packages to be excluded from automatic import also. – matt b Sep 25 '12 at 14:53
This is true, but it much easier to do this when there is multiple options. When there is automatically one choice, its trickier to find how to exclude a package. – Peter Lawrey Sep 25 '12 at 15:02

score 48 · Answer 3 · answered Feb 22 '16 at 10:52

48

Choose the project/module you want to remove unused import from in Project view. Then from Code menu choose Optimize imports and confirm with Run. The imports will be cleaned in whole project/module.

answered Feb 22 '16 at 10:52

Artur Owczarek

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score 47 · Answer 4 · edited Dec 11 '19 at 10:14

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In Mac IntelliJ IDEA, the command is Cmd + Option + O

For some older versions it is apparently Ctrl + Option + O.

(Letter O not Zero 0) on the latest version 2019.x

edited Dec 11 '19 at 10:14

Master

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answered Aug 08 '17 at 20:50

Jay

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and ctrl+alt+o for Windows – mondayguy Feb 27 '18 at 09:26
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Update for 2020. We use ctrl + option + o (macOS) – PathToLife Jul 09 '20 at 21:28

Roman C · Answer 5 · 2012-09-25T14:56:46.053

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You can check checkbox in the commit dialog.

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You can use settings to automatically optimize imports since 11.1 and above.

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edited Sep 25 '12 at 14:56

answered Sep 25 '12 at 14:40

Roman C

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score 15 · Answer 6 · answered Aug 12 '19 at 13:47

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In mac book

IntelliJ

Control + Option + o (not a zero, letter "o")

answered Aug 12 '19 at 13:47

Manimaran Samuthirapandi

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score 8 · Answer 7 · answered Dec 03 '18 at 17:02

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Or you can do the following shortcut :

MAC : Shift + Command + A (Enter Action menu pops up)

And write : Optimize Imports

answered Dec 03 '18 at 17:02

Damiii

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score 8 · Answer 8 · answered Jun 29 '21 at 11:08

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To remove the unused imports in windows. please use the default key combination below.

CTRL + ALT + O ---> to remove the unused imports in windows.

However, you can also change the keymap of "Optimize Imports" in settings.

answered Jun 29 '21 at 11:08

Bathri Nathan

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score 3 · Answer 9 · answered Sep 12 '19 at 10:27

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File/Settings/Inpsections/Imports and change "Unused import" to Error. This marks them more clearly in the Inspections gutter and the Inspection Results panel.

answered Sep 12 '19 at 10:27

Steve Pitchers

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score 2 · Answer 10 · edited May 07 '18 at 13:00

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In IntelliJ, select the project you want to optimize imports on, go to Code menu and choose Optimize imports and a small Optimize Imports popup window will appear. On the popup window you need to click on Run button. Or alternatively, on IntelliJ on Mac, you can use a keyboard short cut Option + Command + O

edited May 07 '18 at 13:00

Morteza Asadi

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answered Sep 18 '17 at 22:20

Shravan Ramamurthy

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Its Option+ **Control** +O – Chetan Nellekeri Apr 13 '18 at 10:24

score 1 · Answer 11 · answered Jan 27 '23 at 17:30

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If you want to use CTRL + Alt + L (remove unused imports while formatting code), you can use CTRL + Alt + Shift + L (once) and there is a checkbox in the popup you should check

answered Jan 27 '23 at 17:30

mustafa küçük

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score 1 · Answer 12 · answered Mar 29 '23 at 11:14

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Now you also have the option to just search for unused imports

Code -> Analyze Code -> Run Inspection by Name.
Unused Import
Whole Project

Source: How to use IntelliJ IDEA to find all unused code?

answered Mar 29 '23 at 11:14

Josue Abarca

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How to remove unused imports in Intellij IDEA on commit?

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