Top 3 Apps to Remove Backgrounds from Pics on a Chromebook

Mission: remove the background from a pic on a Chromebook.  Macs have Preview/Keynote.  Windows has MS Word.  Chromebooks have...web apps.  My top 3 apps are as follows:

EASIEST:

Edit Photos For Free's

Remove Background from Image Tool

How it's done:

HONORABLE MENTIONS:

Pixlr Editor

How it's done:

PicMonkey

How it's done:

Know of others?  Include them in the comments below!