I cannot add more labels to Google Keep because there seems to be a limit to the amount of labels you can use. I cannot find what that limit is. (I don't think I have used that many labels!) Does anybody know what that limit is? I think a limit to the number of labels you can use is not logical for a note-taking application.
The limit seems to be 50.
I created 49 labels, and after creating the 50th, I received a message telling me I had reached the limit.
You could find out how many labels you have, by using the browser developer console. In Chrome, you do that by pressing Ctrl+Alt+I, and run the following statement:
I created 99 labels. It's the limit