IntelliJ IDEA compare tabs

Question

I am using the IDE community version 10.5. In one project, I have several modules. I also opened many tabs in the editor from different modules. Is there a way to compare the contents of two different tabs in the editor, which can be from different modules?

Answer 1

Select two files (by pressing Ctrl) in the project viewing panel → Right mouse button → Compare two files.

You can also use the idea as an external demarcation tool idea diff file1.txt file2.txt

UPDATE: you can also compare files from the Commander tab, just select two files in the right and left panels, right-click on any of them → Compare two files

Answer 2

There is a Compare tab tab with an editor that may not have existed when this question was asked. I use it with IntelliJ 2017.2.

Answer 3

One of the simple solutions is the “Compare with clipboard” function (in the context menu - right-click), which allows you to compare the contents of the editor tab with what is in the clipboard. While you can copy something, you can compare it with a file ...

Answer 4

In 2019, select your file and "compare with the editor" (this is your open tab)