How to copy logcat output to clipboard?

You can click on the output line in LogCat and click ctrl+c like normal then a normal paste into whatever you want. You can use shift and click to select multiple lines.

Ctrl + C works but you need to make sure to make sure you click on the first line of any output that is split into multiple lines.

Select the message and press ctrl+c. You can save it in a text file using this button:

If you are using mac a workaround is to right click, find similar messages, then copy from dialog. – Thank you Snicolas

Copy only what is required in Android Studio

Out of the curiosity I thought to post this answer. By default Logcat shows other information also along with the logs like Date Time, Process and Threads, Package name and Tag and if you copy a line from Logcat then this whole information is copied as well.

In case you don't want this at all or you don't want a particular thing then you can do something like this,

Step 1:

Click on Logcat Header(Settings/Gear) icon

Step 2:

Untick whatever you don't want to see in the logs and ultimately you don't want to copy.

That's it.

I thought it might help someone.

P.S. The question is very old and asked at the time of Eclipse, but this answer is new and is for Android Studio.