1369
votes

How can I permanently enable line numbers in IntelliJ IDEA?

21
why don't all IDE's have the default to "yes show line numbers", how do you debug anythign without using line numbers ?NimChimpsky
Most IDE's have the line number where your mouse cursor is in the status bar, but that's not too useful. Normally there is line numbers in stack traces right? In VIM you can jump to line numbers <line number>G, and Sublime Text, Ctrl+g (type in line number). What's the benifit of line numbers if you can jump straight where you want to go?Dauh Fhauc
What I like the most about the line number column is that it provides an easy hit area for selecting multiple lines without having to fiddle with exact cursor placement.Eric Cosky
I also can't imagine people working without line numbers switched on. And never the less you might possibly don't need it because you just click on links in stacktraces. It gives you orientation in the code and might also be usefull if you talk to someone else about fragments of it.ccDict
All of you talking about clicking on stack traces are assuming that the stack trace being debugged is generated in the IDE. This is almost never the case in a real world scenario. You get a stack trace from a client and then you need to track it down.Dan

21 Answers

1400
votes

IntelliJ 14.X Onwards

From version 14.0 onwards, the path to the setting dialog is slightly different, a General submenu has been added between Editor and Appearance as shown below

enter image description here

IntelliJ 8.1.2 - 13.X

From IntelliJ 8.1.2 onwards, this option is in File | Settings1. Within the IDE Settings section of that dialog, you'll find it under Editor | Appearance.

  1. On a Mac, these are named IntelliJ IDEA | Preferences...

enter image description here

374
votes

The question is obviously well answered already, but since IJ 13 you can enable line numbers in 2 seconds flat:

  1. Press shift twice
  2. Type "line number"
  3. The option shows in the menu and press enter to enable/disable.

enter image description here

Et voila ;)

108
votes

NOT a solution, rather a TEMPORARY solution which only works only for the current editor and current session:

Simply right click on the place where the line-numbers should be, and there you'll see a small menu.

then, mark the "Show Line Numbers" option.

enter image description here

Please note that this only works on a per-file basis, however. Enjoy.

94
votes

In Intellij 13 the layout has changed, the Settings button can only be found in File -> Settings and not in the toolbars, and from there you follow the same steps: Editor -> Appearance -> Show line numbers, or search for Line numbers in the Settings search input.Intellij Settings search for line numbers

76
votes

Android Studio 1.3.2 and on, IntelliJ 15 and on

Global configuration

File -> Settings -> Editor -> General -> Appearance -> Show line numbers

enter image description here


Current editor configuration

First way: View -> Active Editor -> Show Line Numbers (this option will only be available if you previously have clicked into a file of the active editor)

Second way: Right click on the small area between the project's structure and the active editor (that is, the one that you can set breakpoints) -> Show Line Numbers. enter image description here

54
votes

For InteliJ IDEA 11.0 and above
Goto File --> Settings in the Settings window Editor --> Appearance
and tick Show line numbers check box.

enter image description here

33
votes

IntelliJ 14 (Ubuntu):

See: how-do-i-turn-on-line-numbers-permanently-in-intellij-14

Permanently:

File > Settings > Editor > General > Appearance > show line numbers

Editor

For current Editor:

View > Active Editor > Show Line Numbers

Menu

31
votes

IntelliJ IDEA 15

5 approaches


Global change

  1. File > Settings... > Editor > General > Appearance > Show line numbers

    show line numbers

  2. Hit Shift twice > write "line numbers" > Show Line Numbers (that one that has the toggle) > change the toggle to ON

    shift shift


Change for the Active Editor

  1. Right click on the left side bar > Show Line Numbers

    right click

  2. Hit Shift twice > write "line" > Show Line Numbers (the line doesn't have the toggle)

    shift shift line

  3. Ctrl + Shift + A > write "Show line" > Active Editor: Show Line Numbers > change the toggle to ON

    Ctrl Shift A

23
votes

Ok in intelliJ 14 Ultimate using the Mac version this is it.

IntelliJ Idea > Preferences > Editor > General > Appearance > Show Line Numbers

20
votes

On IntelliJ 12 on MAC OSX, I had a hard time finding it. The search wouldn't show me the way for some reason. Go to Preferences and under IDE Settings, Editor, Appearance and select 'Show line numbers'

enter image description here

15
votes

Android Studio

Go to Android Studio => Preferences => Editor => General => Appearance => set Checked "Show line numbers"

enter image description here

15
votes

I just hit this with IdeaVim plugin installed, where even if I set Show Line Numbers, it continued to revert to hiding them.

The (forehead-slapping-worthy) solution was:

:set nu
14
votes

I add this response for IntelliJ IDEA 2018.2 - Ultimate.

Using menu

IntelliJ Idea > Preferences > Editor > General > Appearance > Show Line Numbers

enter image description here

Using Shortcuts - First way

For Windows : Ctrl+Shift+a
For Mac : Cmd+shift+a

enter image description here

Using Shortcuts - Seconde way

Touch Shift twice

enter image description here

These three methods exist since the last 4 versions of Intellij and I think they remain valid for a long time.

13
votes

1st way: Go to View => Active Editor => show line numbers

enter image description here

2nd way Go to Android Studio => Preferences => Editor=> Appearance => set Checked "Show Line Numbers"

enter image description here

enter image description here

13
votes

For 9.0.4

File > Settings

In the tree view group

------------IDE Settings ---------

Click the Editor [+]

Select Appearance... Its there.

10
votes

On Mac Intellij 12.1.2 there is no File-Settings:

There is an application-name menu item to the left of "File" with a "preferences" menu item:

Choosing "Preferences" on the Mac.

and within that is the "Settings" dialog shown by the Windows Intellij.

10
votes

In IntelliJ 14 it has moved again somewhat down the menu.

Now we have it unter Editor -> General -> Appearance

enter image description here

8
votes

Just an update for Android Studio 1.5.1 on Windows:

Go to File -> Settings -> follow picture enter image description here

7
votes

On IntelliJ IDEA 2016.1.2

Go to Settings > Editor > General > Appearance then check the Show Line number option

enter image description here

6
votes

IntelliJ 2019 community edition has line number by default. If you want to show or hide line numbers, go to the following settings to change the appearance.

go to → File → Setting → Editor → General → Appearance → [Check] Show line numbers

show_line_numbers

5
votes

For IntelliJ 20.1 or above, on Mac OSX:

IntelliJ IDEA -> Editor -> General -> Appearance -> Show line numbers

Point to be noted: Always look for Editor

enter image description here

For shortcut:

⌘ + ⇧ + A (command + shift + A)

type enter image description here

and click on the pop up to turn on Show line numbers and you are good to go.