How to remove unused imports in Intellij IDEA on commit?

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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.

Touchmenot answered 25/9, 2012 at 14:34 Comment(5)

ctrl + alt + l will send my pc to sleep..LOL. linux btw. – Barragan 15/5, 2016 at 18:14

alt + control + o : works best on Mac – Jylland 31/1, 2017 at 14:55

@Barragan you can disable it through All Settings => Keyboards => Shortcuts . By the way <kbd>ctrl</kbd> <kbd>alt</kbd> <kbd>l</kbd> is used to format the code in Intellij – Juline 7/3, 2017 at 16:59

alt + control + o working in windows + IDEA – Agler 13/2, 2019 at 13:3

Mac: option + control + o – Wept 6/1, 2022 at 22:24

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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.

Portiere answered 25/9, 2012 at 14:37 Comment(6)

You can also set the option for "Optimize imports on the fly", under the Editor > Auto Import section – Pansypant 25/9, 2012 at 14:41

That is cool, but can drive you crazy if it imports the wrong class. – Portiere 25/9, 2012 at 14:43

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. – Pansypant 25/9, 2012 at 14:44

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.* – Portiere 25/9, 2012 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. – Pansypant 25/9, 2012 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. – Portiere 25/9, 2012 at 15:2

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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.

Molality answered 4/6, 2015 at 3:25 Comment(2)

I just tried and it does not remove unused imports (on IDEA 2017.2.4) – Mons 19/10, 2017 at 23:56

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 – Terpstra 11/11, 2020 at 10:49

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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.

Portiere answered 25/9, 2012 at 14:37 Comment(6)

You can also set the option for "Optimize imports on the fly", under the Editor > Auto Import section – Pansypant 25/9, 2012 at 14:41

That is cool, but can drive you crazy if it imports the wrong class. – Portiere 25/9, 2012 at 14:43

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. – Pansypant 25/9, 2012 at 14:44

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.* – Portiere 25/9, 2012 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. – Pansypant 25/9, 2012 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. – Portiere 25/9, 2012 at 15:2

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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

Erigeron answered 8/8, 2017 at 20:50 Comment(2)

and ctrl+alt+o for Windows – Swingle 27/2, 2018 at 9:26

Update for 2020. We use ctrl + option + o (macOS) – Anabasis 9/7, 2020 at 21:28

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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.

Alburga answered 22/2, 2016 at 10:52 Comment(0)

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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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Faeroese answered 25/9, 2012 at 14:40 Comment(0)

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In mac book

IntelliJ

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

Overlay answered 12/8, 2019 at 13:47 Comment(0)

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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.

Friesland answered 29/6, 2021 at 11:8 Comment(0)

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Or you can do the following shortcut :

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

And write : Optimize Imports

Forgiving answered 3/12, 2018 at 17:2 Comment(0)

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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

Burley answered 27/1, 2023 at 17:30 Comment(0)

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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.

Inbreathe answered 12/9, 2019 at 10:27 Comment(0)

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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

Golightly answered 18/9, 2017 at 22:20 Comment(1)

Its Option+ Control +O – Isostasy 13/4, 2018 at 10:24

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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?

Velvety answered 29/3, 2023 at 11:14 Comment(0)

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