QtCAM is e-con's open source Linux webcam software. This Qt Ubuntu camera software application provides easier user interface for capturing and viewing video from devices supported by Linux UVC driver. It would also work with any V4L2 compatible device.
Cheese - Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share...
PhotoFunia - PhotoFunia is a leading free photo editing site packed with a huge library of picture editor effects & photo filters. Edit pictures with online pic editor.
Kamoso - Kamoso is a webcam recorder from KDE community.
Canva Online Photo Editor - Canva is a robust platform that comes with an online photo editor to edit all your images.
Cameroid - Just like Photo Booth - exept is online. Have fun with your webcam. Apply text and funny effects.
LoonaPix - LoonaPix.com is a way to make funny photo online.